/etc/rc: WARNING: $ipfw_netflow_enable is not set properly - see rc.conf(5).

Index: etc/defaults/rc.conf
===================================================================
--- etc/defaults/rc.conf	(revision 321041)
+++ etc/defaults/rc.conf	(working copy)
@@ -195,6 +195,7 @@
 				# of state tables at shutdown and boot
 ipfs_program="/sbin/ipfs"	# where the ipfs program lives
 ipfs_flags=""			# additional flags for ipfs
+ipfw_netflow_enable="NO"	# Set to YES to enable ipfw netflow.
 pf_enable="NO"			# Set to YES to enable packet filter (pf)
 pf_rules="/etc/pf.conf"		# rules definition file for pf
 pf_program="/sbin/pfctl"	# where the pfctl program lives