File _servicedata of Package libqb

<servicedata>
  <service name="tar_scm">
    <param name="url">git://github.com/ClusterLabs/libqb.git</param>
    <param name="changesrevision">c880fcfd8d67d707c2de8bba5099230605f0f9bc</param>
  </service>
</servicedata>