File _servicedata of Package c-lightning

<servicedata>
  <service name="tar_scm">
    <param name="url">https://github.com/elementsproject/lightning.git</param>
    <param name="changesrevision">37c102c47e8e70c67d62e3a13e1ede35e040d0d5</param>
  </service>
</servicedata>