Use 'ipfw list' instead of 'ipfw l', since it's deprecated (and warning is
printed on system startup).

Index: ipfw
===================================================================
RCS file: /home/ncvs/src/etc/rc.d/ipfw,v
retrieving revision 1.11
diff -u -r1.11 ipfw
--- ipfw	28 Oct 2005 16:07:52 -0000	1.11
+++ ipfw	26 Feb 2006 15:07:27 -0000
@@ -41,7 +41,7 @@
 		fi
 		. "${firewall_script}"
 		echo -n 'Firewall rules loaded'
-	elif [ "`ipfw l 65535`" = "65535 deny ip from any to any" ]; then
+	elif [ "`ipfw list 65535`" = "65535 deny ip from any to any" ]; then
 		echo 'Warning: kernel has firewall functionality, but' \
 		    ' firewall rules are not enabled.'
 		echo '           All ip services are disabled.'