Installing the cmaps-adobe-* packages gets rid of the warning. Apparently the gs.defoma file needs these maps.
-- Use of uninitialized value in print at /var/lib/defoma/scripts/gs.defoma line 108 https://launchpad.net/bugs/6614 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs