I've just added a quirks mechanism to handle deleted ports, so that users get an idea about what's going on.
This complements the usual @conflict/@pkgpath/quirks strategies for ports that have been replaced by/subsumed into something else. I hope that people who gc old ports will remember to fill the new quirk. (yes, even if there's a flag day between releases, as the quirk mechanism will happily work for pkg_info -m >list / pkg_delete * / pkg_add -zl list scenarios) As a result, quirks is now pulled in even for "normal" installs, instead of just updates/replaces...
