File _link of Package mailman.openSUSE_Leap_15.0_Update

<link project="openSUSE:Leap:15.0:Update" package="mailman" rev="42dbe34cddb8b340b9616f97037ffa19" vrev="2.4" baserev="42dbe34cddb8b340b9616f97037ffa19">
  <patches>
    <branch></branch>
  </patches>
</link>