File _link of Package virtualbox.openSUSE_Leap_15.4_Update

<link project="openSUSE:Leap:15.4:Update" package="virtualbox" rev="948c4e225ed9bb653ffb99c0a4c6dabe" vrev="2.33" baserev="948c4e225ed9bb653ffb99c0a4c6dabe">
  <patches>
    <branch></branch>
  </patches>
</link>