File _servicedata of Package libnatpmp

<servicedata>
  <service name="tar_scm">
    <param name="url">https://github.com/miniupnp/libnatpmp.git</param>
    <param name="changesrevision">8257134a5dcb077e40db1946554d676e444406e4</param>
  </service>
</servicedata>