releasing package apt version 1.1~exp12

1 files changed, 185 insertions, 166 deletions

diff --git a/doc/po/it.po b/doc/po/it.po
index deb3cd9b4..b5ee69293 100644
--- a/doc/po/it.po
+++ b/doc/po/it.po
@@ -10,7 +10,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: apt-doc 1.0.5\n"
 "Report-Msgid-Bugs-To: APT Development Team <deity@lists.debian.org>\n"
-"POT-Creation-Date: 2015-08-27 17:55+0200\n"
+"POT-Creation-Date: 2015-09-11 23:36+0200\n"
 "PO-Revision-Date: 2015-01-27 14:11+0200\n"
 "Last-Translator: Beatrice Torracca <beatricet@libero.it>\n"
 "Language-Team: Italian <debian-l10n-italian@lists.debian.org>\n"
@@ -914,8 +914,8 @@ msgstr ""
 #. type: Content of: <refentry><refsect1><title>
 #: apt.8.xml:176 apt-get.8.xml:597 apt-cache.8.xml:359 apt-key.8.xml:191
 #: apt-mark.8.xml:127 apt-secure.8.xml:187 apt-cdrom.8.xml:148
-#: apt-config.8.xml:105 apt.conf.5.xml:1319 apt_preferences.5.xml:716
-#: sources.list.5.xml:456 apt-extracttemplates.1.xml:66 apt-sortpkgs.1.xml:59
+#: apt-config.8.xml:105 apt.conf.5.xml:1321 apt_preferences.5.xml:716
+#: sources.list.5.xml:470 apt-extracttemplates.1.xml:66 apt-sortpkgs.1.xml:59
 #: apt-ftparchive.1.xml:603
 msgid "See Also"
 msgstr "Vedere anche"
@@ -1927,7 +1927,7 @@ msgstr ""
 
 #. type: Content of: <refentry><refsect1><title>
 #: apt-get.8.xml:587 apt-cache.8.xml:352 apt-key.8.xml:170 apt-mark.8.xml:121
-#: apt.conf.5.xml:1313 apt_preferences.5.xml:709
+#: apt.conf.5.xml:1315 apt_preferences.5.xml:709
 msgid "Files"
 msgstr "File"
 
@@ -4167,17 +4167,23 @@ msgstr ""
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
 #: apt.conf.5.xml:336
+#, fuzzy
+#| msgid ""
+#| "Try to download deltas called <literal>PDiffs</literal> for indexes (like "
+#| "<filename>Packages</filename> files) instead of downloading whole ones. "
+#| "True by default."
 msgid ""
 "Try to download deltas called <literal>PDiffs</literal> for indexes (like "
 "<filename>Packages</filename> files) instead of downloading whole ones. True "
-"by default."
+"by default. Preferably, this can be set for specific &sources-list; entries "
+"or index files by using the <option>PDiffs</option> option there."
 msgstr ""
 "Cerca di scaricare le differenze chiamate <literal>PDiff</literal> per gli "
 "indici (come i file <filename>Packages</filename>), invece di scaricare "
 "interamente i nuovi. Attiva in modo predefinito."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:339
+#: apt.conf.5.xml:341
 msgid ""
 "Two sub-options to limit the use of PDiffs are also available: "
 "<literal>FileLimit</literal> can be used to specify a maximum number of "
@@ -4195,7 +4201,7 @@ msgstr ""
 "completo invece delle patch."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:349
+#: apt.conf.5.xml:351
 msgid ""
 "Queuing mode; <literal>Queue-Mode</literal> can be one of <literal>host</"
 "literal> or <literal>access</literal> which determines how APT parallelizes "
@@ -4210,7 +4216,7 @@ msgstr ""
 "literal> significa che viene aperta una connessione per ogni tipo di URI."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:357
+#: apt.conf.5.xml:359
 msgid ""
 "Number of retries to perform. If this is non-zero APT will retry failed "
 "files the given number of times."
@@ -4220,7 +4226,7 @@ msgstr ""
 "ha avuto successo."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:362
+#: apt.conf.5.xml:364
 msgid ""
 "Use symlinks for source archives. If set to true then source archives will "
 "be symlinked when possible instead of copying. True is the default."
@@ -4231,7 +4237,7 @@ msgstr ""
 "vero."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:367
+#: apt.conf.5.xml:369
 msgid ""
 "<literal>http::Proxy</literal> sets the default proxy to use for HTTP URIs. "
 "It is in the standard form of <literal>http://[[user][:pass]@]host[:port]/</"
@@ -4250,7 +4256,7 @@ msgstr ""
 "la variabile d'ambiente <envar>http_proxy</envar>."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:375
+#: apt.conf.5.xml:377
 msgid ""
 "Three settings are provided for cache control with HTTP/1.1 compliant proxy "
 "caches.  <literal>No-Cache</literal> tells the proxy not to use its cached "
@@ -4270,7 +4276,7 @@ msgstr ""
 "file .deb."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:385 apt.conf.5.xml:473
+#: apt.conf.5.xml:387 apt.conf.5.xml:475
 msgid ""
 "The option <literal>timeout</literal> sets the timeout timer used by the "
 "method; this value applies to the connection as well as the data timeout."
@@ -4280,7 +4286,7 @@ msgstr ""
 "quello per i dati."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:388
+#: apt.conf.5.xml:390
 #, fuzzy
 #| msgid ""
 #| "The setting <literal>Acquire::http::Pipeline-Depth</literal> can be used "
@@ -4309,7 +4315,7 @@ msgstr ""
 "con la specifica HTTP/1.1."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:395
+#: apt.conf.5.xml:397
 msgid ""
 "<literal>Acquire::http::AllowRedirect</literal> controls whether APT will "
 "follow redirects, which is enabled by default."
@@ -4318,7 +4324,7 @@ msgstr ""
 "meno le ridirezioni che sono abilitate in modo predefinito."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:398
+#: apt.conf.5.xml:400
 msgid ""
 "The used bandwidth can be limited with <literal>Acquire::http::Dl-Limit</"
 "literal> which accepts integer values in kilobytes per second. The default "
@@ -4333,7 +4339,7 @@ msgstr ""
 "scaricamento da più server contemporaneamente."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:405
+#: apt.conf.5.xml:407
 msgid ""
 "<literal>Acquire::http::User-Agent</literal> can be used to set a different "
 "User-Agent for the http download method as some proxies allow access for "
@@ -4345,7 +4351,7 @@ msgstr ""
 "conosciuto."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:409
+#: apt.conf.5.xml:411
 msgid ""
 "<literal>Acquire::http::Proxy-Auto-Detect</literal> can be used to specify "
 "an external command to discover the http proxy to use. Apt expects the "
@@ -4368,7 +4374,7 @@ msgstr ""
 "sull'opzione col nome obsoleto <literal>ProxyAutoDetect</literal>."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:427
+#: apt.conf.5.xml:429
 msgid ""
 "The <literal>Cache-control</literal>, <literal>Timeout</literal>, "
 "<literal>AllowRedirect</literal>, <literal>Dl-Limit</literal> and "
@@ -4385,7 +4391,7 @@ msgstr ""
 "<literal>Pipeline-Depth</literal> non è ancora supportata."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:435
+#: apt.conf.5.xml:437
 msgid ""
 "<literal>CaInfo</literal> suboption specifies place of file that holds info "
 "about trusted certificates.  <literal>&lt;host&gt;::CaInfo</literal> is the "
@@ -4426,7 +4432,7 @@ msgstr ""
 "literal> è la corrispondente opzione specifica per ciascun host."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:456
+#: apt.conf.5.xml:458
 msgid ""
 "<literal>ftp::Proxy</literal> sets the default proxy to use for FTP URIs.  "
 "It is in the standard form of <literal>ftp://[[user][:pass]@]host[:port]/</"
@@ -4460,7 +4466,7 @@ msgstr ""
 "literal>."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:476
+#: apt.conf.5.xml:478
 msgid ""
 "Several settings are provided to control passive mode. Generally it is safe "
 "to leave passive mode on; it works in nearly every environment.  However, "
@@ -4476,7 +4482,7 @@ msgstr ""
 "uno specifico host (vedere il file di configurazione d'esempio)."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:483
+#: apt.conf.5.xml:485
 msgid ""
 "It is possible to proxy FTP over HTTP by setting the <envar>ftp_proxy</"
 "envar> environment variable to an HTTP URL - see the discussion of the http "
@@ -4490,7 +4496,7 @@ msgstr ""
 "a causa della sua bassa efficienza."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:488
+#: apt.conf.5.xml:490
 msgid ""
 "The setting <literal>ForceExtended</literal> controls the use of RFC2428 "
 "<literal>EPSV</literal> and <literal>EPRT</literal> commands. The default is "
@@ -4506,13 +4512,13 @@ msgstr ""
 "parte dei server FTP non supporta la RFC 2428."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para><literallayout>
-#: apt.conf.5.xml:502
+#: apt.conf.5.xml:504
 #, no-wrap
 msgid "/cdrom/::Mount \"foo\";"
 msgstr "/cdrom/::Mount \"pippo\";"
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:497
+#: apt.conf.5.xml:499
 msgid ""
 "For URIs using the <literal>cdrom</literal> method, the only configurable "
 "option is the mount point, <literal>cdrom::Mount</literal>, which must be "
@@ -4534,7 +4540,7 @@ msgstr ""
 "comandi per lo smontaggio possono essere specificati usando UMount."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:510
+#: apt.conf.5.xml:512
 msgid ""
 "For GPGV URIs the only configurable option is <literal>gpgv::Options</"
 "literal>, which passes additional parameters to gpgv."
@@ -4543,13 +4549,13 @@ msgstr ""
 "literal>, che passa parametri aggiuntivi a gpgv."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para><synopsis>
-#: apt.conf.5.xml:521
+#: apt.conf.5.xml:523
 #, no-wrap
 msgid "Acquire::CompressionTypes::<replaceable>FileExtension</replaceable> \"<replaceable>Methodname</replaceable>\";"
 msgstr "Acquire::CompressionTypes::<replaceable>EstensioneFile</replaceable> \"<replaceable>NomeMetodo</replaceable>\";"
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:516
+#: apt.conf.5.xml:518
 msgid ""
 "List of compression types which are understood by the acquire methods.  "
 "Files like <filename>Packages</filename> can be available in various "
@@ -4568,19 +4574,19 @@ msgstr ""
 "metodo usato. La sintassi è: <placeholder type=\"synopsis\" id=\"0\"/>"
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para><synopsis>
-#: apt.conf.5.xml:526
+#: apt.conf.5.xml:528
 #, no-wrap
 msgid "Acquire::CompressionTypes::Order:: \"gz\";"
 msgstr "Acquire::CompressionTypes::Order:: \"gz\";"
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para><synopsis>
-#: apt.conf.5.xml:529
+#: apt.conf.5.xml:531
 #, no-wrap
 msgid "Acquire::CompressionTypes::Order { \"lzma\"; \"gz\"; };"
 msgstr "Acquire::CompressionTypes::Order { \"lzma\"; \"gz\"; };"
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:522
+#: apt.conf.5.xml:524
 msgid ""
 "Also, the <literal>Order</literal> subgroup can be used to define in which "
 "order the acquire system will try to download the compressed files. The "
@@ -4611,13 +4617,13 @@ msgstr ""
 "all'elenco, dato che verrà aggiunto automaticamente."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para><literallayout>
-#: apt.conf.5.xml:536
+#: apt.conf.5.xml:538
 #, no-wrap
 msgid "Dir::Bin::bzip2 \"/bin/bzip2\";"
 msgstr "Dir::Bin::bzip2 \"/bin/bzip2\";"
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:531
+#: apt.conf.5.xml:533
 msgid ""
 "Note that the <literal>Dir::Bin::<replaceable>Methodname</replaceable></"
 "literal> will be checked at run time. If this option has been set, the "
@@ -4643,7 +4649,7 @@ msgstr ""
 "definito; aggiunge solamente il tipo indicato all'inizio dell'elenco."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:541
+#: apt.conf.5.xml:543
 msgid ""
 "The special type <literal>uncompressed</literal> can be used to give "
 "uncompressed files a preference, but note that most archives don't provide "
@@ -4655,7 +4661,7 @@ msgstr ""
 "soprattutto per i mirror locali."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:548
+#: apt.conf.5.xml:550
 msgid ""
 "When downloading <literal>gzip</literal> compressed indexes (Packages, "
 "Sources, or Translations), keep them gzip compressed locally instead of "
@@ -4669,7 +4675,7 @@ msgstr ""
 "modo predefinito è disabilitato."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:556
+#: apt.conf.5.xml:558
 msgid ""
 "The Languages subsection controls which <filename>Translation</filename> "
 "files are downloaded and in which order APT tries to display the description-"
@@ -4688,13 +4694,13 @@ msgstr ""
 "codici di lingua lunghi sono particolarmente rari."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para><programlisting>
-#: apt.conf.5.xml:573
+#: apt.conf.5.xml:575
 #, no-wrap
 msgid "Acquire::Languages { \"environment\"; \"de\"; \"en\"; \"none\"; \"fr\"; };"
 msgstr "Acquire::Languages { \"environment\"; \"it\"; \"en\"; \"none\"; \"fr\"; };"
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:561
+#: apt.conf.5.xml:563
 msgid ""
 "The default list includes \"environment\" and \"en\". "
 "\"<literal>environment</literal>\" has a special meaning here: it will be "
@@ -4733,7 +4739,7 @@ msgstr ""
 "<placeholder type=\"programlisting\" id=\"0\"/>"
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:574
+#: apt.conf.5.xml:576
 msgid ""
 "Note: To prevent problems resulting from APT being executed in different "
 "environments (e.g. by different users or by other programs) all Translation "
@@ -4747,24 +4753,24 @@ msgstr ""
 "implicito)."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:583
+#: apt.conf.5.xml:585
 msgid "When downloading, force to use only the IPv4 protocol."
 msgstr "Durante gli scaricamenti, forza l'uso del solo protocollo IPv4."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:589
+#: apt.conf.5.xml:591
 msgid "When downloading, force to use only the IPv6 protocol."
 msgstr "Durante gli scaricamenti, forza l'uso del solo protocollo IPv6."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:595
+#: apt.conf.5.xml:597
 msgid ""
 "The maximum file size of Release/Release.gpg/InRelease files.  The default "
 "is 10MB."
 msgstr ""
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:602
+#: apt.conf.5.xml:604
 msgid ""
 "This option controls if apt will use the DNS SRV server record as specified "
 "in RFC 2782 to select an alternative server to connect to.  The default is "
@@ -4772,7 +4778,7 @@ msgid ""
 msgstr ""
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:611
+#: apt.conf.5.xml:613
 msgid ""
 "Allow the update operation to load data files from a repository without a "
 "trusted signature. If enabled this option no data files will be loaded and "
@@ -4781,7 +4787,7 @@ msgid ""
 msgstr ""
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:622
+#: apt.conf.5.xml:624
 msgid ""
 "Allow that a repository that was previously gpg signed to become unsigned "
 "durign a update operation. When there is no valid signature of a perviously "
@@ -4792,12 +4798,12 @@ msgid ""
 msgstr ""
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><term>
-#: apt.conf.5.xml:634
+#: apt.conf.5.xml:636
 msgid "scope"
 msgstr ""
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:636
+#: apt.conf.5.xml:638
 msgid ""
 "Acquiring changelogs can only be done if an URI is known from where to get "
 "them.  Preferable the Release file indicates this in a 'Changelogs' field. "
@@ -4825,12 +4831,12 @@ msgid ""
 msgstr ""
 
 #. type: Content of: <refentry><refsect1><title>
-#: apt.conf.5.xml:664
+#: apt.conf.5.xml:666
 msgid "Directories"
 msgstr "Directory"
 
 #. type: Content of: <refentry><refsect1><para>
-#: apt.conf.5.xml:666
+#: apt.conf.5.xml:668
 msgid ""
 "The <literal>Dir::State</literal> section has directories that pertain to "
 "local state information. <literal>lists</literal> is the directory to place "
@@ -4850,7 +4856,7 @@ msgstr ""
 "<filename>/</filename> o <filename>./</filename>."
 
 #. type: Content of: <refentry><refsect1><para>
-#: apt.conf.5.xml:673
+#: apt.conf.5.xml:675
 msgid ""
 "<literal>Dir::Cache</literal> contains locations pertaining to local cache "
 "information, such as the two package caches <literal>srcpkgcache</literal> "
@@ -4874,7 +4880,7 @@ msgstr ""
 "predefinita è contenuta in <literal>Dir::Cache</literal>"
 
 #. type: Content of: <refentry><refsect1><para>
-#: apt.conf.5.xml:683
+#: apt.conf.5.xml:685
 msgid ""
 "<literal>Dir::Etc</literal> contains the location of configuration files, "
 "<literal>sourcelist</literal> gives the location of the sourcelist and "
@@ -4889,7 +4895,7 @@ msgstr ""
 "configurazione specificato da <envar>APT_CONFIG</envar>)."
 
 #. type: Content of: <refentry><refsect1><para>
-#: apt.conf.5.xml:689
+#: apt.conf.5.xml:691
 msgid ""
 "The <literal>Dir::Parts</literal> setting reads in all the config fragments "
 "in lexical order from the directory specified. After this is done then the "
@@ -4900,7 +4906,7 @@ msgstr ""
 "termine viene caricato il file di configurazione principale."
 
 #. type: Content of: <refentry><refsect1><para>
-#: apt.conf.5.xml:693
+#: apt.conf.5.xml:695
 msgid ""
 "Binary programs are pointed to by <literal>Dir::Bin</literal>. <literal>Dir::"
 "Bin::Methods</literal> specifies the location of the method handlers and "
@@ -4917,7 +4923,7 @@ msgstr ""
 "specificano la posizione dei rispettivi programmi."
 
 #. type: Content of: <refentry><refsect1><para>
-#: apt.conf.5.xml:701
+#: apt.conf.5.xml:703
 #, fuzzy
 #| msgid ""
 #| "The configuration item <literal>RootDir</literal> has a special meaning.  "
@@ -4948,7 +4954,7 @@ msgstr ""
 "staging/var/lib/dpkg/status</filename>."
 
 #. type: Content of: <refentry><refsect1><para>
-#: apt.conf.5.xml:715
+#: apt.conf.5.xml:717
 msgid ""
 "The <literal>Ignore-Files-Silently</literal> list can be used to specify "
 "which files APT should silently ignore while parsing the files in the "
@@ -4966,12 +4972,12 @@ msgstr ""
 "questi modelli possono usare una sintassi con espressioni regolari."
 
 #. type: Content of: <refentry><refsect1><title>
-#: apt.conf.5.xml:724
+#: apt.conf.5.xml:726
 msgid "APT in DSelect"
 msgstr "APT in DSelect"
 
 #. type: Content of: <refentry><refsect1><para>
-#: apt.conf.5.xml:726
+#: apt.conf.5.xml:728
 msgid ""
 "When APT is used as a &dselect; method several configuration directives "
 "control the default behavior. These are in the <literal>DSelect</literal> "
@@ -4982,7 +4988,7 @@ msgstr ""
 "sezione <literal>DSelect</literal>."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:731
+#: apt.conf.5.xml:733
 msgid ""
 "Cache Clean mode; this value may be one of <literal>always</literal>, "
 "<literal>prompt</literal>, <literal>auto</literal>, <literal>pre-auto</"
@@ -5004,7 +5010,7 @@ msgstr ""
 "scaricare i nuovi pacchetti."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:745
+#: apt.conf.5.xml:747
 msgid ""
 "The contents of this variable are passed to &apt-get; as command line "
 "options when it is run for the install phase."
@@ -5014,7 +5020,7 @@ msgstr ""
 "installazione."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:750
+#: apt.conf.5.xml:752
 msgid ""
 "The contents of this variable are passed to &apt-get; as command line "
 "options when it is run for the update phase."
@@ -5024,7 +5030,7 @@ msgstr ""
 "aggiornamento."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:755
+#: apt.conf.5.xml:757
 msgid ""
 "If true the [U]pdate operation in &dselect; will always prompt to continue.  "
 "The default is to prompt only on error."
@@ -5034,12 +5040,12 @@ msgstr ""
 "solo in caso di errore."
 
 #. type: Content of: <refentry><refsect1><title>
-#: apt.conf.5.xml:761
+#: apt.conf.5.xml:763
 msgid "How APT calls &dpkg;"
 msgstr "Come APT invoca &dpkg;"
 
 #. type: Content of: <refentry><refsect1><para>
-#: apt.conf.5.xml:762
+#: apt.conf.5.xml:764
 msgid ""
 "Several configuration directives control how APT invokes &dpkg;. These are "
 "in the <literal>DPkg</literal> section."
@@ -5048,7 +5054,7 @@ msgstr ""
 "&dpkg;; sono nella sezione <literal>DPkg</literal>."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:767
+#: apt.conf.5.xml:769
 msgid ""
 "This is a list of options to pass to &dpkg;. The options must be specified "
 "using the list notation and each list item is passed as a single argument to "
@@ -5059,7 +5065,7 @@ msgstr ""
 "passata a &dpkg; come un singolo argomento."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:773
+#: apt.conf.5.xml:775
 msgid ""
 "This is a list of shell commands to run before/after invoking &dpkg;.  Like "
 "<literal>options</literal> this must be specified in list notation. The "
@@ -5072,7 +5078,7 @@ msgstr ""
 "bin/sh</filename>; se qualcuno dei comandi fallisce APT terminerà annullando."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:780
+#: apt.conf.5.xml:782
 msgid ""
 "This is a list of shell commands to run before invoking &dpkg;. Like "
 "<literal>options</literal> this must be specified in list notation. The "
@@ -5090,7 +5096,7 @@ msgstr ""
 "lo standard input."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:787
+#: apt.conf.5.xml:789
 msgid ""
 "Version 2 of this protocol sends more information through the requested file "
 "descriptor: a line with the text <literal>VERSION 2</literal>, the APT "
@@ -5099,7 +5105,7 @@ msgid ""
 msgstr ""
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:792
+#: apt.conf.5.xml:794
 msgid ""
 "Each configuration directive line has the form <literal>key=value</"
 "literal>.  Special characters (equal signs, newlines, nonprintable "
@@ -5111,7 +5117,7 @@ msgid ""
 msgstr ""
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:800
+#: apt.conf.5.xml:802
 msgid ""
 "Package action lines consist of five fields in Version 2: old version, "
 "direction of version change (&lt; for upgrades, &gt; for downgrades, = for "
@@ -5124,7 +5130,7 @@ msgid ""
 msgstr ""
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:810
+#: apt.conf.5.xml:812
 msgid ""
 "In Version 3 after each version field follows the architecture of this "
 "version, which is \"-\" if there is no version, and a field showing the "
@@ -5134,7 +5140,7 @@ msgid ""
 msgstr ""
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:816
+#: apt.conf.5.xml:818
 msgid ""
 "The version of the protocol to be used for the command "
 "<literal><replaceable>cmd</replaceable></literal> can be chosen by setting "
@@ -5151,7 +5157,7 @@ msgstr ""
 "l'informazione nella versione più alta per cui ha il supporto."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:823
+#: apt.conf.5.xml:825
 msgid ""
 "The file descriptor to be used to send the information can be requested with "
 "<literal>DPkg::Tools::options::<replaceable>cmd</replaceable>::InfoFD</"
@@ -5169,7 +5175,7 @@ msgstr ""
 "file usato per conferma."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:833
+#: apt.conf.5.xml:835
 msgid ""
 "APT chdirs to this directory before invoking &dpkg;, the default is "
 "<filename>/</filename>."
@@ -5178,7 +5184,7 @@ msgstr ""
 "valore predefinito è <filename>/</filename>."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:838
+#: apt.conf.5.xml:840
 msgid ""
 "These options are passed to &dpkg-buildpackage; when compiling packages; the "
 "default is to disable signing and produce all binaries."
@@ -5188,12 +5194,12 @@ msgstr ""
 "binari."
 
 #. type: Content of: <refentry><refsect1><refsect2><title>
-#: apt.conf.5.xml:843
+#: apt.conf.5.xml:845
 msgid "dpkg trigger usage (and related options)"
 msgstr "Uso dei trigger di dpkg (e relative opzioni)"
 
 #. type: Content of: <refentry><refsect1><refsect2><para>
-#: apt.conf.5.xml:844
+#: apt.conf.5.xml:846
 msgid ""
 "APT can call &dpkg; in such a way as to let it make aggressive use of "
 "triggers over multiple calls of &dpkg;. Without further options &dpkg; will "
@@ -5221,7 +5227,7 @@ msgstr ""
 "pacchetti."
 
 #. type: Content of: <refentry><refsect1><refsect2><para><literallayout>
-#: apt.conf.5.xml:859
+#: apt.conf.5.xml:861
 #, no-wrap
 msgid ""
 "DPkg::NoTriggers \"true\";\n"
@@ -5235,7 +5241,7 @@ msgstr ""
 "DPkg::TriggersPending \"true\";"
 
 #. type: Content of: <refentry><refsect1><refsect2><para>
-#: apt.conf.5.xml:853
+#: apt.conf.5.xml:855
 msgid ""
 "Note that it is not guaranteed that APT will support these options or that "
 "these options will not cause (big) trouble in the future. If you have "
@@ -5259,7 +5265,7 @@ msgstr ""
 "\"literallayout\" id=\"0\"/>"
 
 #. type: Content of: <refentry><refsect1><refsect2><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:866
+#: apt.conf.5.xml:868
 msgid ""
 "Add the no triggers flag to all &dpkg; calls (except the ConfigurePending "
 "call).  See &dpkg; if you are interested in what this actually means. In "
@@ -5281,7 +5287,7 @@ msgstr ""
 "questa opzione anche alle chiamate per lo spacchettamento e la rimozione."
 
 #. type: Content of: <refentry><refsect1><refsect2><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:874
+#: apt.conf.5.xml:876
 msgid ""
 "Valid values are \"<literal>all</literal>\", \"<literal>smart</literal>\" "
 "and \"<literal>no</literal>\".  The default value is \"<literal>all</literal>"
@@ -5311,7 +5317,7 @@ msgstr ""
 "potrebbe finire in uno stato non configurato e potenzialmente non avviabile."
 
 #. type: Content of: <refentry><refsect1><refsect2><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:889
+#: apt.conf.5.xml:891
 msgid ""
 "If this option is set APT will call <command>dpkg --configure --pending</"
 "command> to let &dpkg; handle all required configurations and triggers. This "
@@ -5329,7 +5335,7 @@ msgstr ""
 "si può disattivare questa opzione in tutte le esecuzioni tranne l'ultima."
 
 #. type: Content of: <refentry><refsect1><refsect2><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:896
+#: apt.conf.5.xml:898
 msgid ""
 "Useful for the <literal>smart</literal> configuration as a package which has "
 "pending triggers is not considered as <literal>installed</literal>, and "
@@ -5345,7 +5351,7 @@ msgstr ""
 "necessari per configurare il pacchetto in questione."
 
 #. type: Content of: <refentry><refsect1><refsect2><variablelist><varlistentry><listitem><para><literallayout>
-#: apt.conf.5.xml:909
+#: apt.conf.5.xml:911
 #, no-wrap
 msgid ""
 "OrderList::Score {\n"
@@ -5363,7 +5369,7 @@ msgstr ""
 "};"
 
 #. type: Content of: <refentry><refsect1><refsect2><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:902
+#: apt.conf.5.xml:904
 msgid ""
 "Essential packages (and their dependencies) should be configured immediately "
 "after unpacking. It is a good idea to do this quite early in the upgrade "
@@ -5388,12 +5394,12 @@ msgstr ""
 "con i loro valori predefiniti. <placeholder type=\"literallayout\" id=\"0\"/>"
 
 #. type: Content of: <refentry><refsect1><title>
-#: apt.conf.5.xml:922
+#: apt.conf.5.xml:924
 msgid "Periodic and Archives options"
 msgstr "Opzioni Periodic e Archives"
 
 #. type: Content of: <refentry><refsect1><para>
-#: apt.conf.5.xml:923
+#: apt.conf.5.xml:925
 msgid ""
 "<literal>APT::Periodic</literal> and <literal>APT::Archives</literal> groups "
 "of options configure behavior of apt periodic updates, which is done by the "
@@ -5407,12 +5413,12 @@ msgstr ""
 "all'inizio dello script."
 
 #. type: Content of: <refentry><refsect1><title>
-#: apt.conf.5.xml:931
+#: apt.conf.5.xml:933
 msgid "Debug options"
 msgstr "Opzioni di debug"
 
 #. type: Content of: <refentry><refsect1><para>
-#: apt.conf.5.xml:933
+#: apt.conf.5.xml:935
 msgid ""
 "Enabling options in the <literal>Debug::</literal> section will cause "
 "debugging information to be sent to the standard error stream of the program "
@@ -5430,7 +5436,7 @@ msgstr ""
 "esserlo:"
 
 #. type: Content of: <refentry><refsect1><para><itemizedlist><listitem><para>
-#: apt.conf.5.xml:944
+#: apt.conf.5.xml:946
 msgid ""
 "<literal>Debug::pkgProblemResolver</literal> enables output about the "
 "decisions made by <literal>dist-upgrade, upgrade, install, remove, purge</"
@@ -5441,7 +5447,7 @@ msgstr ""
 "literal>."
 
 #. type: Content of: <refentry><refsect1><para><itemizedlist><listitem><para>
-#: apt.conf.5.xml:952
+#: apt.conf.5.xml:954
 msgid ""
 "<literal>Debug::NoLocking</literal> disables all file locking.  This can be "
 "used to run some operations (for instance, <literal>apt-get -s install</"
@@ -5452,7 +5458,7 @@ msgstr ""
 "install</literal>) come utente non root."
 
 #. type: Content of: <refentry><refsect1><para><itemizedlist><listitem><para>
-#: apt.conf.5.xml:961
+#: apt.conf.5.xml:963
 msgid ""
 "<literal>Debug::pkgDPkgPM</literal> prints out the actual command line each "
 "time that <literal>apt</literal> invokes &dpkg;."
@@ -5464,7 +5470,7 @@ msgstr ""
 #. 	   motivating example, except I haven't a clue why you'd want
 #. 	   to do this. 
 #. type: Content of: <refentry><refsect1><para><itemizedlist><listitem><para>
-#: apt.conf.5.xml:969
+#: apt.conf.5.xml:971
 msgid ""
 "<literal>Debug::IdentCdrom</literal> disables the inclusion of statfs data "
 "in CD-ROM IDs."
@@ -5473,37 +5479,37 @@ msgstr ""
 "negli ID dei CD-ROM."
 
 #. type: Content of: <refentry><refsect1><para>
-#: apt.conf.5.xml:979
+#: apt.conf.5.xml:981
 msgid "A full list of debugging options to apt follows."
 msgstr "Segue un elenco completo delle opzioni di debug per apt."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:988
+#: apt.conf.5.xml:990
 msgid ""
 "Print information related to accessing <literal>cdrom://</literal> sources."
 msgstr ""
 "Stampa informazioni relative all'accesso a fonti <literal>cdrom://</literal>."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:999
+#: apt.conf.5.xml:1001
 msgid "Print information related to downloading packages using FTP."
 msgstr ""
 "Stampa informazioni relative allo scaricamento dei pacchetti usando FTP."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:1010
+#: apt.conf.5.xml:1012
 msgid "Print information related to downloading packages using HTTP."
 msgstr ""
 "Stampa informazioni relative allo scaricamento dei pacchetti usando HTTP."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:1021
+#: apt.conf.5.xml:1023
 msgid "Print information related to downloading packages using HTTPS."
 msgstr ""
 "Stampa informazioni relative allo scaricamento dei pacchetti usando HTTPS."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:1032
+#: apt.conf.5.xml:1034
 msgid ""
 "Print information related to verifying cryptographic signatures using "
 "<literal>gpg</literal>."
@@ -5512,7 +5518,7 @@ msgstr ""
 "usando <literal>gpg</literal>."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:1043
+#: apt.conf.5.xml:1045
 msgid ""
 "Output information about the process of accessing collections of packages "
 "stored on CD-ROMs."
@@ -5521,14 +5527,14 @@ msgstr ""
 "pacchetti memorizzati su CD-ROM."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:1053
+#: apt.conf.5.xml:1055
 msgid "Describes the process of resolving build-dependencies in &apt-get;."
 msgstr ""
 "Descrive il processo di risoluzione delle dipendenze di compilazione in &apt-"
 "get;."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:1063
+#: apt.conf.5.xml:1065
 msgid ""
 "Output each cryptographic hash that is generated by the <literal>apt</"
 "literal> libraries."
@@ -5537,7 +5543,7 @@ msgstr ""
 "<literal>apt</literal>."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:1073
+#: apt.conf.5.xml:1075
 msgid ""
 "Do not include information from <literal>statfs</literal>, namely the number "
 "of used and free blocks on the CD-ROM filesystem, when generating an ID for "
@@ -5548,7 +5554,7 @@ msgstr ""
 "system del CD-ROM."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:1084
+#: apt.conf.5.xml:1086
 msgid ""
 "Disable all file locking.  For instance, this will allow two instances of "
 "<quote><literal>apt-get update</literal></quote> to run at the same time."
@@ -5558,14 +5564,14 @@ msgstr ""
 "contemporaneamente."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:1096
+#: apt.conf.5.xml:1098
 msgid "Log when items are added to or removed from the global download queue."
 msgstr ""
 "Registra nel log quando vengono aggiunte o rimosse voci dalla coda globale "
 "degli scaricamenti."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:1106
+#: apt.conf.5.xml:1108
 msgid ""
 "Output status messages and errors related to verifying checksums and "
 "cryptographic signatures of downloaded files."
@@ -5574,7 +5580,7 @@ msgstr ""
 "codici di controllo e delle firme di cifratura dei file scaricati."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:1116
+#: apt.conf.5.xml:1118
 msgid ""
 "Output information about downloading and applying package index list diffs, "
 "and errors relating to package index list diffs."
@@ -5584,7 +5590,7 @@ msgstr ""
 "diff."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:1128
+#: apt.conf.5.xml:1130
 msgid ""
 "Output information related to patching apt package lists when downloading "
 "index diffs instead of full indices."
@@ -5594,7 +5600,7 @@ msgstr ""
 "invece degli indici completi."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:1139
+#: apt.conf.5.xml:1141
 msgid ""
 "Log all interactions with the sub-processes that actually perform downloads."
 msgstr ""
@@ -5602,7 +5608,7 @@ msgstr ""
 "realmente gli scaricamenti."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:1150
+#: apt.conf.5.xml:1152
 msgid ""
 "Log events related to the automatically-installed status of packages and to "
 "the removal of unused packages."
@@ -5611,7 +5617,7 @@ msgstr ""
 "installato dei pacchetti e alla rimozione dei pacchetti non utilizzati."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:1160
+#: apt.conf.5.xml:1162
 msgid ""
 "Generate debug messages describing which packages are being automatically "
 "installed to resolve dependencies.  This corresponds to the initial auto-"
@@ -5627,7 +5633,7 @@ msgstr ""
 "pkgProblemResolver</literal>."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:1174
+#: apt.conf.5.xml:1176
 msgid ""
 "Generate debug messages describing which packages are marked as keep/install/"
 "remove while the ProblemResolver does his work.  Each addition or deletion "
@@ -5659,7 +5665,7 @@ msgstr ""
 "sezione in cui compare il pacchetto."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:1195
+#: apt.conf.5.xml:1197
 msgid ""
 "When invoking &dpkg;, output the precise command line with which it is being "
 "invoked, with arguments separated by a single space character."
@@ -5668,7 +5674,7 @@ msgstr ""
 "gli argomenti separati da un singolo carattere di spazio."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:1206
+#: apt.conf.5.xml:1208
 msgid ""
 "Output all the data received from &dpkg; on the status file descriptor and "
 "any errors encountered while parsing it."
@@ -5677,7 +5683,7 @@ msgstr ""
 "di stato ed ogni errore incontrato durante la sua analisi."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:1217
+#: apt.conf.5.xml:1219
 msgid ""
 "Generate a trace of the algorithm that decides the order in which "
 "<literal>apt</literal> should pass packages to &dpkg;."
@@ -5686,7 +5692,7 @@ msgstr ""
 "literal> deve passare i pacchetti a &dpkg;."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:1229
+#: apt.conf.5.xml:1231
 msgid ""
 "Output status messages tracing the steps performed when invoking &dpkg;."
 msgstr ""
@@ -5694,12 +5700,12 @@ msgstr ""
 "nell'invocazione di &dpkg;."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:1240
+#: apt.conf.5.xml:1242
 msgid "Output the priority of each package list on startup."
 msgstr "Produce in output la priorità di ogni elenco di pacchetti all'avvio."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:1250
+#: apt.conf.5.xml:1252
 msgid ""
 "Trace the execution of the dependency resolver (this applies only to what "
 "happens when a complex dependency problem is encountered)."
@@ -5709,7 +5715,7 @@ msgstr ""
 "dipendenze)."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:1261
+#: apt.conf.5.xml:1263
 msgid ""
 "Display a list of all installed packages with their calculated score used by "
 "the pkgProblemResolver. The description of the package is the same as "
@@ -5720,7 +5726,7 @@ msgstr ""
 "la stessa descritta in <literal>Debug::pkgDepCache::Marker</literal>"
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:1273
+#: apt.conf.5.xml:1275
 msgid ""
 "Print information about the vendors read from <filename>/etc/apt/vendors."
 "list</filename>."
@@ -5729,7 +5735,7 @@ msgstr ""
 "filename>."
 
 #. type: Content of: <refentry><refsect1><variablelist><varlistentry><listitem><para>
-#: apt.conf.5.xml:1283
+#: apt.conf.5.xml:1285
 msgid ""
 "Display the external commands that are called by apt hooks.  This includes e."
 "g. the config options <literal>DPkg::{Pre,Post}-Invoke</literal> or "
@@ -5740,13 +5746,13 @@ msgstr ""
 "Invoke</literal> o <literal>APT::Update::{Pre,Post}-Invoke</literal>."
 
 #. type: Content of: <refentry><refsect1><title>
-#: apt.conf.5.xml:1307 apt_preferences.5.xml:556 sources.list.5.xml:361
+#: apt.conf.5.xml:1309 apt_preferences.5.xml:556 sources.list.5.xml:375
 #: apt-ftparchive.1.xml:592
 msgid "Examples"
 msgstr "Esempi"
 
 #. type: Content of: <refentry><refsect1><para>
-#: apt.conf.5.xml:1308
+#: apt.conf.5.xml:1310
 msgid ""
 "&configureindex; is a configuration file showing example values for all "
 "possible options."
@@ -5756,7 +5762,7 @@ msgstr ""
 
 #.  ? reading apt.conf 
 #. type: Content of: <refentry><refsect1><para>
-#: apt.conf.5.xml:1320
+#: apt.conf.5.xml:1322
 msgid "&apt-cache;, &apt-config;, &apt-preferences;."
 msgstr "&apt-cache;, &apt-config;, &apt-preferences;."
 
@@ -7597,8 +7603,21 @@ msgid ""
 "using this multivalue option."
 msgstr ""
 
+#. type: Content of: <refentry><refsect1><para><itemizedlist><listitem><para>
+#: sources.list.5.xml:230
+msgid ""
+"<option>PDiffs</option> (<option>pdiffs</option>)  is a yes/no value which "
+"controls if APT should try to use PDiffs to update old indexes instead of "
+"downloading the new indexes entirely. The value of this option is ignored if "
+"the repository doesn't announce the availability of PDiffs.  Defaults to the "
+"value of the option with the same name for a specific index file defined in "
+"the <option>Acquire::IndexTargets</option> scope, which itself default to "
+"the value of configuration option <option>Acquire::PDiffs</option> which "
+"defaults to <literal>yes</literal>."
+msgstr ""
+
 #. type: Content of: <refentry><refsect1><para>
-#: sources.list.5.xml:231
+#: sources.list.5.xml:245
 msgid ""
 "Further more, there are options which if set effect <emphasis>all</emphasis> "
 "sources with the same URI and Suite, so they have to be set on all such "
@@ -7607,7 +7626,7 @@ msgid ""
 msgstr ""
 
 #. type: Content of: <refentry><refsect1><para><itemizedlist><listitem><para>
-#: sources.list.5.xml:238
+#: sources.list.5.xml:252
 msgid ""
 "<option>Signed-By</option> (<option>signed-by</option>)  is either an "
 "absolute path to a keyring file (has to be accessible and readable for the "
@@ -7622,7 +7641,7 @@ msgid ""
 msgstr ""
 
 #. type: Content of: <refentry><refsect1><para><itemizedlist><listitem><para>
-#: sources.list.5.xml:252
+#: sources.list.5.xml:266
 msgid ""
 "<option>Check-Valid-Until</option> (<option>check-valid-until</option>)  is "
 "a yes/no value which controls if APT should try to detect replay attacks. A "
@@ -7639,9 +7658,9 @@ msgid ""
 msgstr ""
 
 #. type: Content of: <refentry><refsect1><para><itemizedlist><listitem><para>
-#: sources.list.5.xml:269
+#: sources.list.5.xml:283
 msgid ""
-"<option>Valid-Until-Min</option> (<option>check-valid-min</option>) and "
+"<option>Valid-Until-Min</option> (<option>valid-until-min</option>) and "
 "<option>Valid-Until-Max</option> (<option>valid-until-max</option>) can be "
 "used to raise or lower the time period in seconds in which the data from "
 "this repository is considered valid. -Max can be especially useful if the "
@@ -7655,17 +7674,17 @@ msgid ""
 msgstr ""
 
 #. type: Content of: <refentry><refsect1><title>
-#: sources.list.5.xml:291
+#: sources.list.5.xml:305
 msgid "URI specification"
 msgstr "Specificare URI"
 
 #. type: Content of: <refentry><refsect1><para>
-#: sources.list.5.xml:293
+#: sources.list.5.xml:307
 msgid "The currently recognized URI types are:"
 msgstr "I tipi di URI attualmente riconosciuti sono:"
 
 #. type: Content of: <refentry><refsect1><para><variablelist><varlistentry><listitem><para>
-#: sources.list.5.xml:297
+#: sources.list.5.xml:311
 msgid ""
 "The file scheme allows an arbitrary directory in the file system to be "
 "considered an archive. This is useful for NFS mounts and local mirrors or "
@@ -7676,7 +7695,7 @@ msgstr ""
 "archivi locali."
 
 #. type: Content of: <refentry><refsect1><para><variablelist><varlistentry><listitem><para>
-#: sources.list.5.xml:304
+#: sources.list.5.xml:318
 msgid ""
 "The cdrom scheme allows APT to use a local CD-ROM drive with media swapping. "
 "Use the &apt-cdrom; program to create cdrom entries in the source list."
@@ -7686,7 +7705,7 @@ msgstr ""
 "delle fonti."
 
 #. type: Content of: <refentry><refsect1><para><variablelist><varlistentry><listitem><para>
-#: sources.list.5.xml:311
+#: sources.list.5.xml:325
 msgid ""
 "The http scheme specifies an HTTP server for the archive. If an environment "
 "variable <envar>http_proxy</envar> is set with the format http://server:"
@@ -7703,7 +7722,7 @@ msgstr ""
 "è un metodo di autenticazione non sicuro."
 
 #. type: Content of: <refentry><refsect1><para><variablelist><varlistentry><listitem><para>
-#: sources.list.5.xml:322
+#: sources.list.5.xml:336
 msgid ""
 "The ftp scheme specifies an FTP server for the archive. APT's FTP behavior "
 "is highly configurable; for more information see the &apt-conf; manual page. "
@@ -7723,7 +7742,7 @@ msgstr ""
 "HTTP specificati nel file di configurazione verranno ignorati."
 
 #. type: Content of: <refentry><refsect1><para><variablelist><varlistentry><listitem><para>
-#: sources.list.5.xml:334
+#: sources.list.5.xml:348
 msgid ""
 "The copy scheme is identical to the file scheme except that packages are "
 "copied into the cache directory instead of used directly at their location.  "
@@ -7736,7 +7755,7 @@ msgstr ""
 "rimovibili, per copiare i file nelle varie posizioni con APT."
 
 #. type: Content of: <refentry><refsect1><para><variablelist><varlistentry><listitem><para>
-#: sources.list.5.xml:341
+#: sources.list.5.xml:355
 msgid ""
 "The rsh/ssh method invokes RSH/SSH to connect to a remote host and access "
 "the files as a given user. Prior configuration of rhosts or RSA keys is "
@@ -7750,12 +7769,12 @@ msgstr ""
 "command> e <command>dd</command>."
 
 #. type: Content of: <refentry><refsect1><para><variablelist><varlistentry><term>
-#: sources.list.5.xml:348
+#: sources.list.5.xml:362
 msgid "adding more recognizable URI types"
 msgstr "aggiungere ulteriori tipi di URI riconoscibili"
 
 #. type: Content of: <refentry><refsect1><para><variablelist><varlistentry><listitem><para>
-#: sources.list.5.xml:350
+#: sources.list.5.xml:364
 msgid ""
 "APT can be extended with more methods shipped in other optional packages, "
 "which should follow the naming scheme <package>apt-transport-"
@@ -7774,7 +7793,7 @@ msgstr ""
 "debtorrrent; vedere &apt-transport-debtorrent;."
 
 #. type: Content of: <refentry><refsect1><para>
-#: sources.list.5.xml:362
+#: sources.list.5.xml:376
 #, fuzzy
 #| msgid ""
 #| "Uses the archive stored locally (or NFS mounted) at /home/jason/debian "
@@ -7787,14 +7806,14 @@ msgstr ""
 "debian per stable/main, stable/contrib e stable/non-free."
 
 #. type: Content of: <refentry><refsect1><literallayout>
-#: sources.list.5.xml:364
+#: sources.list.5.xml:378
 #, fuzzy, no-wrap
 #| msgid "deb file:/home/jason/debian stable main contrib non-free"
 msgid "deb file:/home/apt/debian stable main contrib non-free"
 msgstr "deb file:/home/gianni/debian stable main contrib non-free"
 
 #. type: Content of: <refentry><refsect1><literallayout>
-#: sources.list.5.xml:365
+#: sources.list.5.xml:379
 #, fuzzy, no-wrap
 #| msgid "deb file:/home/jason/debian stable main contrib non-free"
 msgid ""
@@ -7805,21 +7824,21 @@ msgid ""
 msgstr "deb file:/home/gianni/debian stable main contrib non-free"
 
 #. type: Content of: <refentry><refsect1><para>
-#: sources.list.5.xml:370
+#: sources.list.5.xml:384
 msgid "As above, except this uses the unstable (development) distribution."
 msgstr ""
 "Come sopra, tranne per il fatto che usa la distribuzione unstable (di "
 "sviluppo)"
 
 #. type: Content of: <refentry><refsect1><literallayout>
-#: sources.list.5.xml:371
+#: sources.list.5.xml:385
 #, fuzzy, no-wrap
 #| msgid "deb file:/home/jason/debian unstable main contrib non-free"
 msgid "deb file:/home/apt/debian unstable main contrib non-free"
 msgstr "deb file:/home/gianni/debian unstable main contrib non-free"
 
 #. type: Content of: <refentry><refsect1><literallayout>
-#: sources.list.5.xml:372
+#: sources.list.5.xml:386
 #, fuzzy, no-wrap
 #| msgid "deb file:/home/jason/debian unstable main contrib non-free"
 msgid ""
@@ -7830,19 +7849,19 @@ msgid ""
 msgstr "deb file:/home/gianni/debian unstable main contrib non-free"
 
 #. type: Content of: <refentry><refsect1><para>
-#: sources.list.5.xml:377
+#: sources.list.5.xml:391
 msgid "Source line for the above"
 msgstr "Riga per i sorgenti corrispondente alla precedente"
 
 #. type: Content of: <refentry><refsect1><literallayout>
-#: sources.list.5.xml:378
+#: sources.list.5.xml:392
 #, fuzzy, no-wrap
 #| msgid "deb-src file:/home/jason/debian unstable main contrib non-free"
 msgid "deb-src file:/home/apt/debian unstable main contrib non-free"
 msgstr "deb-src file:/home/gianni/debian unstable main contrib non-free"
 
 #. type: Content of: <refentry><refsect1><literallayout>
-#: sources.list.5.xml:379
+#: sources.list.5.xml:393
 #, fuzzy, no-wrap
 #| msgid "deb-src file:/home/jason/debian unstable main contrib non-free"
 msgid ""
@@ -7853,7 +7872,7 @@ msgid ""
 msgstr "deb-src file:/home/gianni/debian unstable main contrib non-free"
 
 #. type: Content of: <refentry><refsect1><para>
-#: sources.list.5.xml:385
+#: sources.list.5.xml:399
 msgid ""
 "The first line gets package information for the architectures in "
 "<literal>APT::Architectures</literal> while the second always retrieves "
@@ -7864,7 +7883,7 @@ msgstr ""
 "<literal>amd64</literal> e <literal>armel</literal>."
 
 #. type: Content of: <refentry><refsect1><literallayout>
-#: sources.list.5.xml:387
+#: sources.list.5.xml:401
 #, fuzzy, no-wrap
 #| msgid ""
 #| "deb http://ftp.debian.org/debian &stable-codename; main\n"
@@ -7877,7 +7896,7 @@ msgstr ""
 "deb [ arch=amd64,armel ] http://ftp.debian.org/debian &stable-codename; main"
 
 #. type: Content of: <refentry><refsect1><literallayout>
-#: sources.list.5.xml:389
+#: sources.list.5.xml:403
 #, fuzzy, no-wrap
 #| msgid ""
 #| "deb http://ftp.debian.org/debian &stable-codename; main\n"
@@ -7898,7 +7917,7 @@ msgstr ""
 "deb [ arch=amd64,armel ] http://ftp.debian.org/debian &stable-codename; main"
 
 #. type: Content of: <refentry><refsect1><para>
-#: sources.list.5.xml:401
+#: sources.list.5.xml:415
 msgid ""
 "Uses HTTP to access the archive at archive.debian.org, and uses only the "
 "hamm/main area."
@@ -7907,13 +7926,13 @@ msgstr ""
 "hamm/main."
 
 #. type: Content of: <refentry><refsect1><literallayout>
-#: sources.list.5.xml:403
+#: sources.list.5.xml:417
 #, no-wrap
 msgid "deb http://archive.debian.org/debian-archive hamm main"
 msgstr "deb http://archive.debian.org/debian-archive hamm main"
 
 #. type: Content of: <refentry><refsect1><literallayout>
-#: sources.list.5.xml:404
+#: sources.list.5.xml:418
 #, fuzzy, no-wrap
 #| msgid "deb http://archive.debian.org/debian-archive hamm main"
 msgid ""
@@ -7924,7 +7943,7 @@ msgid ""
 msgstr "deb http://archive.debian.org/debian-archive hamm main"
 
 #. type: Content of: <refentry><refsect1><para>
-#: sources.list.5.xml:409
+#: sources.list.5.xml:423
 msgid ""
 "Uses FTP to access the archive at ftp.debian.org, under the debian "
 "directory, and uses only the &stable-codename;/contrib area."
@@ -7933,13 +7952,13 @@ msgstr ""
 "e usa solo l'area &stable-codename;/contrib."
 
 #. type: Content of: <refentry><refsect1><literallayout>
-#: sources.list.5.xml:411
+#: sources.list.5.xml:425
 #, no-wrap
 msgid "deb ftp://ftp.debian.org/debian &stable-codename; contrib"
 msgstr "deb ftp://ftp.debian.org/debian &stable-codename; contrib"
 
 #. type: Content of: <refentry><refsect1><literallayout>
-#: sources.list.5.xml:412
+#: sources.list.5.xml:426
 #, fuzzy, no-wrap
 #| msgid "deb ftp://ftp.debian.org/debian &stable-codename; contrib"
 msgid ""
@@ -7950,7 +7969,7 @@ msgid ""
 msgstr "deb ftp://ftp.debian.org/debian &stable-codename; contrib"
 
 #. type: Content of: <refentry><refsect1><para>
-#: sources.list.5.xml:417
+#: sources.list.5.xml:431
 msgid ""
 "Uses FTP to access the archive at ftp.debian.org, under the debian "
 "directory, and uses only the unstable/contrib area. If this line appears as "
@@ -7963,13 +7982,13 @@ msgstr ""
 "usata una sola sessione FTP per entrambe le righe."
 
 #. type: Content of: <refentry><refsect1><literallayout>
-#: sources.list.5.xml:421
+#: sources.list.5.xml:435
 #, no-wrap
 msgid "deb ftp://ftp.debian.org/debian unstable contrib"
 msgstr "deb ftp://ftp.debian.org/debian unstable contrib"
 
 #. type: Content of: <refentry><refsect1><literallayout>
-#: sources.list.5.xml:422
+#: sources.list.5.xml:436
 #, fuzzy, no-wrap
 #| msgid "deb ftp://ftp.debian.org/debian unstable contrib"
 msgid ""
@@ -7980,13 +7999,13 @@ msgid ""
 msgstr "deb ftp://ftp.debian.org/debian unstable contrib"
 
 #. type: Content of: <refentry><refsect1><para><literallayout>
-#: sources.list.5.xml:434
+#: sources.list.5.xml:448
 #, no-wrap
 msgid "deb http://ftp.tlh.debian.org/universe unstable/binary-$(ARCH)/"
 msgstr "deb http://ftp.tlh.debian.org/universe unstable/binary-$(ARCH)/"
 
 #. type: Content of: <refentry><refsect1><para><literallayout>
-#: sources.list.5.xml:435
+#: sources.list.5.xml:449
 #, fuzzy, no-wrap
 #| msgid "deb http://ftp.tlh.debian.org/universe unstable/binary-$(ARCH)/"
 msgid ""
@@ -7996,7 +8015,7 @@ msgid ""
 msgstr "deb http://ftp.tlh.debian.org/universe unstable/binary-$(ARCH)/"
 
 #. type: Content of: <refentry><refsect1><para>
-#: sources.list.5.xml:427
+#: sources.list.5.xml:441
 #, fuzzy
 #| msgid ""
 #| "Uses HTTP to access the archive at ftp.tlh.debian.org, under the universe "
@@ -8024,14 +8043,14 @@ msgstr ""
 "modo.] <placeholder type=\"literallayout\" id=\"0\"/>"
 
 #. type: Content of: <refentry><refsect1><para>
-#: sources.list.5.xml:440
+#: sources.list.5.xml:454
 msgid ""
 "Uses HTTP to get binary packages as well as sources from the stable, testing "
 "and unstable suites and the components main and contrib."
 msgstr ""
 
 #. type: Content of: <refentry><refsect1><literallayout>
-#: sources.list.5.xml:442
+#: sources.list.5.xml:456
 #, no-wrap
 msgid ""
 "deb http://httpredir.debian.org/debian stable main contrib\n"
@@ -8043,7 +8062,7 @@ msgid ""
 msgstr ""
 
 #. type: Content of: <refentry><refsect1><literallayout>
-#: sources.list.5.xml:448
+#: sources.list.5.xml:462
 #, no-wrap
 msgid ""
 "Types: deb deb-src\n"
@@ -8053,7 +8072,7 @@ msgid ""
 msgstr ""
 
 #. type: Content of: <refentry><refsect1><para>
-#: sources.list.5.xml:457
+#: sources.list.5.xml:471
 #, fuzzy
 #| msgid "&apt-cache; &apt-conf;"
 msgid "&apt-get;, &apt-conf;"