Add missing "*)" case statement and make sure RC_DEBUG and RC_FORCE are

unset beforehands; prodded by halex@
Add rc_usage().
ok halex@

src/etc/rc.d/rc.subr

@@ -1,4 +1,4 @@
-#	$OpenBSD: rc.subr,v 1.46 2011/09/19 20:41:50 robert Exp $
+#	$OpenBSD: rc.subr,v 1.47 2011/09/22 08:15:01 ajacoutot Exp $
 #
 # Copyright (c) 2010, 2011 Antoine Jacoutot <ajacoutot@openbsd.org>
 # Copyright (c) 2010, 2011 Ingo Schwarze <schwarze@openbsd.org>
@@ -24,6 +24,10 @@ rc_err() {
 	exit 1
 }
 
+rc_usage() {
+	rc_err "usage: $0 [-df] {start|check|reload|restart|stop}"
+}
+
 rc_start() {
 	${rcexec} "${daemon} ${daemon_flags} ${_bg}"
 }
@@ -130,7 +134,8 @@ rc_cmd() {
 		/etc/rc.d/${_name} stop && /etc/rc.d/${_name} start
 		;;
 	*)
-		rc_err "usage: $0 {start|check|reload|restart|stop}"
+		rc_usage
+		;;
 	esac
 }
 
@@ -138,10 +143,12 @@ rc_cmd() {
 
 [ -n "${daemon}" ] || rc_err "$0: daemon is not set"
 
+unset RC_DEBUG RC_FORCE
 while getopts "df" c; do
 	case "$c" in
 		d) RC_DEBUG=1;;
 		f) RC_FORCE=1;;
+		*) rc_usage;;
 	esac
 done
 shift $((OPTIND-1))