This port builds fine on RELENG_4, so don't mark it BROKEN there.
It's still broken on a recent -current, though, but an OSVERSION value
more specific than 500000 should probably be used.
Note that this port still doesn't build (more specifically, doesn't
install) on bento, since it uses uname(3) to determine the system
version, and bento doesn't fake it (it fakes uname(1)).
Discussed with: kris
Approved by: obrien