Virt-top master contains the link to the closed bug for F12. Could you please update the link appropriately? https://translate.fedoraproject.org/projects/p/virt-top/c/master/
Is there a new bug somewhere? If not, we could just change that bug to not reference F12.
New bug has now been created. https://bugzilla.redhat.com/show_bug.cgi?id=604909
Changed reference to the new bug.