Allow cgd configuration to be skipped (by setting cgd=NO, defaults to YES).

Closes my PR/20766.  Based on a suggestion by lukem.

etc/defaults/rc.conf

@@ -1,4 +1,4 @@
-#	$NetBSD: rc.conf,v 1.44 2003/03/10 18:21:00 lukem Exp $
+#	$NetBSD: rc.conf,v 1.45 2003/03/19 06:06:47 wiz Exp $
 #
 # /etc/defaults/rc.conf --
 #	default configuration of /etc/rc.conf
@@ -81,6 +81,10 @@ no_swap=NO		# Set to YES if you have purposefully setup no swap
 			# partitions and don't want to be warned about it.
 swapoff=NO		# Remove block-type swap partitions upon shutdown
 
+# Crypto file system.
+#
+cgd=YES
+
 # One-time actions and programs on boot-up.
 #
 lkm=NO			# Run /etc/rc.lkm.  /usr needs to be part of /, or

etc/rc.d/cgd

@@ -1,6 +1,6 @@
 #!/bin/sh
 #
-# $NetBSD: cgd,v 1.1 2002/10/09 14:55:55 elric Exp $
+# $NetBSD: cgd,v 1.2 2003/03/19 06:06:48 wiz Exp $
 #
 
 # PROVIDE: disks
@@ -8,6 +8,7 @@
 . /etc/rc.subr
 
 name="cgd"
+rcvar=$name
 start_cmd="cgd_start"
 stop_cmd=":"