File _link of Package virtualbox.openSUSE_Leap_15.4_Update

<link project="openSUSE:Leap:15.4:Update" package="virtualbox" rev="9d869371c8ea8c9fac0f56ff83ae81df" vrev="2.8" baserev="9d869371c8ea8c9fac0f56ff83ae81df">
  <patches>
    <branch></branch>
  </patches>
</link>