aalib-x11 and aview-x11.
SDL dependencies change, so bump PKGREVISION (and BUILDLINK_RECOMMENDED)
for affected packages.
Addresses PR 32046 by Leonard Schmidt.
4st Attack is a game in which you have to try to out-smart your opponent. The
goal of the game is to connect four of stones in a straight line. This can be
horizontaly, vertically and even diagonnally.