/etc/rc.d/ipfw can't deal with firewall_type?

[KIRIYAMA Kazuhiko]

Hi all,
Recently I upgraded to 8.2-STABLE and reconfigured natd + jailed box, but
all packets could not over nat box. I've researched and found
/etc/rc.firewall does not recieve argument of firewall_type. So ipfw does
not divert and natd could not be performed. The reason is /etc/rc.d/ipfw
incorrect. I think an patch below should be applyed to /etc/rc.d/ipfw. Is
there any problem to do this?

--- /etc/rc.d/ipfw.org	2011-05-03 18:19:28.000000000 +0900
+++ /etc/rc.d/ipfw	2011-05-03 22:08:14.000000000 +0900
@@ -35,15 +35,11 @@
 
 ipfw_start()
 {
-	local   _firewall_type
-
-	_firewall_type=$1
-
 	# set the firewall rules script if none was specified
 	[ -z "${firewall_script}" ] && firewall_script=/etc/rc.firewall
 
 	if [ -r "${firewall_script}" ]; then
-		/bin/sh "${firewall_script}" "${_firewall_type}"
+		/bin/sh "${firewall_script}" "${firewall_type}"
 		echo 'Firewall rules loaded.'
 	elif [ "`ipfw list 65535`" = "65535 deny ip from any to any" ]; then
 		echo 'Warning: kernel has firewall functionality, but' \