File _servicedata of Package post-build-checks

<servicedata>
  <service name="tar_scm">
    <param name="url">git://github.com/openSUSE/post-build-checks.git</param>
  <param name="changesrevision">f347f2e1ffb7a22e1959d7435439dda2525f5176</param></service>
</servicedata>