[Bug 1228870] New: repo-font-audit doesn't know about xml metadata files

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1228870

Bug ID: 1228870
           Summary: repo-font-audit doesn't know about xml metadata files
           Product: Fedora
           Version: 22
         Component: fontpackages
          Severity: low
          Assignee: [e-mail]
          Reporter: [e-mail]
        QA Contact: [e-mail]
                CC: [e-mail],
                    [e-mail], [e-mail],
                    [e-mail]

When font packages that contain xml metadata files are checked with
repo-font-audit, it throws the following error:
fonts in packages that contain non-font data

Since xml metadata files are now required for font packages, the script should
be updated to recognize them.