File _servicedata of Package v4l2loopback

<servicedata>
<service name="tar_scm">
                <param name="url">https://github.com/umlaeute/v4l2loopback</param>
              <param name="changesrevision">850a2e36849f6ad3c9bf74f2ae3f603452bd8a71</param></service></servicedata>