File _servicedata of Package v4l2loopback

<servicedata>
<service name="tar_scm">
                <param name="url">https://github.com/v4l2loopback/v4l2loopback.git</param>
              <param name="changesrevision">c394f8fb2c168932055c2577247c42390198d7c9</param></service></servicedata>