File _service of Package osc

<services>
<!--
  <service name="tar_scm" mode="disabled">
    <param name="version">0.170.0</param>
    <param name="revision">0.170.0</param>
    <param name="url">git://github.com/openSUSE/osc.git</param>
    <param name="scm">git</param>
  </service>
-->
  <service name="obs_scm">
    <param name="versionprefix">0.171~pre</param>
    <param name="url">git://github.com/openSUSE/osc.git</param>
    <param name="scm">git</param>
  </service>
  <service name="tar" mode="buildtime"/>
  <service name="recompress" mode="buildtime">
    <param name="compression">gz</param>
    <param name="file">*.tar</param>
  </service>
  <service name="set_version" mode="buildtime"/>
</services>