Don't forget to clean "grog".

Don't use MANDEPEND.  It hasn't had anything to do with dependencies for
5-6 years, but is still being used, mainly in groff/*/Makefile, where it
amounts to just a macro giving the list of generated man pages.  Since
all man pages in groff are generated (from .man to .[1-9]), it's simpler
to use the source names ({$MANX}) to give the list.

Fixed some other style bugs.

gnu/usr.bin/groff/grog/Makefile

@@ -1,11 +1,7 @@
-# Makefile for grog
-#
 # $FreeBSD$
 
-MAN1=		grog.1
-
-MANDEPEND=	${MAN1}
-CLEANFILES+=	${MANDEPEND}
+MAN1=	grog.1
+CLEANFILES= grog ${MAN1}
 
 all: grog
 
@@ -13,7 +9,7 @@ beforeinstall:
 	${INSTALL} -c -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} grog \
 	    ${DESTDIR}${BINDIR}
 
-.include <../Makefile.cfg>
+.include "../Makefile.cfg"
 .include <bsd.prog.mk>
 
 grog: ${DIST_DIR}/grog.sh