Don't omit ac(8) as part of WITHOUT_ACCT.

The WITHOUT_ACCT switch is supposed to omit tools related to process
accounting, namely accton and sa. ac(8) is just a simple tool that
prints statistics based on data in the utx.log database. It has nothing
to do with the former.

etc/periodic/monthly/Makefile

@@ -2,12 +2,7 @@
 
 .include <bsd.own.mk>
 
-FILES=	999.local
-
-# NB: keep these sorted by MK_* knobs
-
-.if ${MK_ACCT} != "no"
-FILES+=	200.accounting
-.endif
+FILES=	200.accounting \
+	999.local
 
 .include <bsd.prog.mk>

tools/build/mk/OptionalObsoleteFiles.inc

@@ -8,10 +8,8 @@
 .if ${MK_ACCT} == no
 OLD_FILES+=etc/periodic/daily/310.accounting
 OLD_FILES+=etc/periodic/monthly/200.accounting
-OLD_FILES+=usr/sbin/ac
 OLD_FILES+=usr/sbin/accton
 OLD_FILES+=usr/sbin/sa
-OLD_FILES+=usr/share/man/man8/ac.8.gz
 OLD_FILES+=usr/share/man/man8/accton.8.gz
 OLD_FILES+=usr/share/man/man8/sa.8.gz
 .endif

tools/build/options/WITHOUT_ACCT

@@ -1,5 +1,5 @@
 .\" $FreeBSD$
 Set to not build process accounting tools such as
-.Xr ac 8
+.Xr accton 8
 and
-.Xr accton 8 .
+.Xr sa 8 .

usr.sbin/Makefile

@@ -3,7 +3,8 @@
 
 .include <bsd.own.mk>
 
-SUBDIR= adduser \
+SUBDIR=	ac \
+	adduser \
 	arp \
 	bootparamd \
 	burncd \
@@ -99,7 +100,6 @@ SUBDIR= adduser \
 # NB: keep these sorted by MK_* knobs
 
 .if ${MK_ACCT} != "no"
-SUBDIR+=	ac
 SUBDIR+=	accton
 SUBDIR+=	sa
 .endif