Change executable and man file names to "roguegg"

Makefile

@@ -1,7 +1,7 @@
 #	$NetBSD: Makefile,v 1.22 2023/06/03 09:09:09 lukem Exp $
 #	@(#)Makefile	8.1 (Berkeley) 5/31/93
 
-PROG=	rogue
+PROG=	roguegg
 CPPFLAGS+=-DUNIX
 SRCS=	hit.c init.c inventory.c level.c machdep.c main.c \
 	message.c monster.c move.c object.c pack.c play.c random.c ring.c \
@@ -10,7 +10,7 @@ DPADD=	${LIBCURSES} ${LIBTERMINFO}
 LDADD=	-lcurses -lterminfo
 HIDEGAME=hidegame
 SETGIDGAME=yes
-MAN=	rogue.6
+MAN=	roguegg.6
 
 SUBDIR.roff+=USD.doc