File _link of Package GraphicsMagick.openSUSE_Backports_SLE-15_Update

<link project="openSUSE:Backports:SLE-15:Update" package="GraphicsMagick" rev="b1aac8098907c9c8078fa61713b45f63" vrev="1" baserev="b1aac8098907c9c8078fa61713b45f63">
  <patches>
    <branch></branch>
  </patches>
</link>