Set PATH=/usr/sbin:/usr/bin:/sbin:/bin when running dpkg

This avoids a lot of problems from local installations of
scripting languages and other stuff in /usr/local for which
maintainer scripts are not prepared.

[v3: Inherit PATH during tests, check overrides work]
[v2: Add testing]

1 files changed, 4 insertions, 0 deletions

diff --git a/doc/examples/configure-index b/doc/examples/configure-index
index 99aedfd19..d7bd3daba 100644
--- a/doc/examples/configure-index
+++ b/doc/examples/configure-index
@@ -461,6 +461,10 @@ DPkg
    // Probably don't want to use force-downgrade..
    Options {"--force-overwrite";"--force-downgrade";}
 
+   // Defaults to /usr/sbin:/usr/bin:/sbin:/bin, might be set to empty
+   // string to inherit from environment
+   Path "<STRING>";
+
    // Auto re-mounting of a readonly /usr
    Pre-Invoke {"mount -o remount,rw /usr";};
    Post-Invoke {"mount -o remount,ro /usr";};