policycoreutils: Force GTK3.0 for sepolicy gui

This removes the following warning when running sepolicy gui command:

/usr/lib/python3/dist-packages/sepolicy/gui.py:29: PyGIWarning: Gtk was imported without specifying a version first. Use gi.require_version('Gtk', '3.0') before import to ensure that the right version gets loaded.

Signed-off-by: Laurent Bigonville <bigon@bigon.be>
1 file changed