File _servicedata of Package mumble

<servicedata>
  <service name="tar_scm">
    <param name="url">https://github.com/mumble-voip/mumble.git</param>
    <param name="changesrevision">5ae5c1756c049b9571289ef9cea6ecb49407c5e8</param>
  </service>
</servicedata>