File _service of Package screengrab-git

<services>
  <service name="tar_scm">
    <param name="scm">git</param>
    <param name="url">https://github.com/lxqt/screengrab</param>
    <param name="versionformat">@PARENT_TAG@+git%cd.%h</param>
  </service>
  <service name="set_version"/>
</services>