File _service of Package difftastic

<services>
  <service name="download_files" mode="manual" />
  <service name="cargo_vendor" mode="manual">
     <param name="srctar">difftastic-*.tar.gz</param>
     <param name="compression">xz</param>
     <param name="update">false</param>
     <param name="filter">true</param>
  </service>
</services>