4.4BSD snapshot (revision 8.1); add 1993 to copyright

4.4BSD snapshot (revision 8.1); add 1993 to copyright

SCCS-vsn: games/rogue/curses.c 8.1
SCCS-vsn: games/rogue/hit.c 8.1
SCCS-vsn: games/rogue/init.c 8.1
SCCS-vsn: games/rogue/inventory.c 8.1
SCCS-vsn: games/rogue/level.c 8.1
SCCS-vsn: games/rogue/machdep.c 8.1
SCCS-vsn: games/rogue/main.c 8.1
SCCS-vsn: games/rogue/message.c 8.1
SCCS-vsn: games/rogue/monster.c 8.1
SCCS-vsn: games/rogue/move.c 8.1
SCCS-vsn: games/rogue/object.c 8.1
SCCS-vsn: games/rogue/pack.c 8.1
SCCS-vsn: games/rogue/pathnames.h 8.1
SCCS-vsn: games/rogue/play.c 8.1
SCCS-vsn: games/rogue/random.c 8.1
SCCS-vsn: games/rogue/ring.c 8.1
SCCS-vsn: games/rogue/rogue.h 8.1
SCCS-vsn: games/rogue/room.c 8.1
SCCS-vsn: games/rogue/save.c 8.1
SCCS-vsn: games/rogue/score.c 8.1
SCCS-vsn: games/rogue/spec_hit.c 8.1
SCCS-vsn: games/rogue/throw.c 8.1
SCCS-vsn: games/rogue/trap.c 8.1
SCCS-vsn: games/rogue/use.c 8.1
SCCS-vsn: games/rogue/zap.c 8.1
SCCS-vsn: games/rogue/rogue.6 8.1