File _servicedata of Package gnome-multi-writer

<servicedata>
<service name="tar_scm">
                <param name="url">https://gitlab.gnome.org/GNOME/gnome-multi-writer.git</param>
              <param name="changesrevision">6a6d4d9677c3b30f4fd4fd4f4bb49592d608b2cf</param></service></servicedata>