with the exception of -h|--help.

It only makes sense to run unopkg with root priviledges if adding,
deleting etc. extensions system-wide for all users (i.e with --shared
or --bundled switch). In all other cases it only messes up access
rights to extensions, so prevent that.

Fusion of 723e0999 and 9444ffc9

Change-Id: Ifa273a4d66b85d9d7ed7e8e22036ccc821507fd2
Reviewed-on: https://gerrit.libreoffice.org/16293Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
Tested-by: Stephan Bergmann <sbergman@redhat.com>