File _servicedata of Package rollback-helper

<servicedata>
  <service name="tar_scm">
    <param name="url">https://github.com/openSUSE/rollback-helper.git</param>
    <param name="changesrevision">73ac53ef74ae7ea7810bc3b58c0abf9dcd47a369</param>
 </service>
</servicedata>