File _servicedata of Package appstream-glib

<servicedata>
<service name="tar_scm">
            <param name="url">https://github.com/hughsie/appstream-glib.git</param>
          <param name="changesrevision">0ff41ace8c070f3aade7b6e4a56a692df3c8b10f</param></service></servicedata>