Bug#887421: [Aptitude-devel] Bug#887421: dpkg: warning: unable to delete old directory '/usr/share/man/gl/man8': Directory not empty

[積丹尼 Dan Jacobson]

Users will still freak out if any errors are printed like this so maybe also 
print a one-time
soothing message that will appear in the apt output.
If there is no way to do that then that should be a bug in itself.