Fix: Recognize "category/NNNN" in http://www.freebsd.org/cgi/search.cgi and redirect to http://www.freebsd.org/cgi/query-pr.cgi How-To-Repeat: Enter a PR number into search box, get lots of irrelevant results.
modify to show bugzilla now :-)
We don't have prefixes to bug numbers any more, so this would be unnecessarily difficult. If you're after a particular bug, a shortcut is bugs.FreeBSD.org/NNNNN https://bugs.FreeBSD.org/161174