File _servicedata of Package libqb

<servicedata>
  <service name="tar_scm">
    <param name="url">git://github.com/ClusterLabs/libqb.git</param>
    <param name="changesrevision">6a4067c1d1764d93d255eccecfd8bf9f43cb0b4d</param>
  </service>
</servicedata>