Give example for INSECURE option in the GENERIC config file in a comment.

Closes PR 2355 giving a different explanation of the option than proposed.

sys/arch/amiga/conf/GENERIC

@@ -1,4 +1,4 @@
-#	$NetBSD: GENERIC,v 1.55 1996/04/27 20:51:07 veego Exp $
+#	$NetBSD: GENERIC,v 1.56 1996/04/30 17:40:34 is Exp $
 
 #
 # GENERIC AMIGA
@@ -84,6 +84,8 @@ options		SYSVSEM		# System V-like semaphores
 #
 
 options		UCONSOLE	# anyone can redirect a virtual console
+#options	INSECURE	# allow, among other insecure stuff, LKM 
+				# loading in multi-user mode.
 
 options		GENERIC		# Mini-root boot support
 options		LKM		# Loadable kernel modules