clarify smtpfwdd_flags; from dfa@solo.ee. ok deraadt

src/etc/rc.conf

@@ -1,6 +1,6 @@
 #!/bin/sh -
 #
-#	$OpenBSD: rc.conf,v 1.69 2001/09/11 19:03:55 millert Exp $
+#	$OpenBSD: rc.conf,v 1.70 2001/10/12 22:40:58 jakob Exp $
 
 # set these to "NO" to turn them off.  otherwise, they're used as flags
 routed_flags=NO		# for normal use: "-q"
@@ -11,7 +11,8 @@ rarpd_flags=NO		# for normal use: "-a"
 bootparamd_flags=NO	# for normal use: ""
 rbootd_flags=NO		# for normal use: ""
 sshd_flags=""		# for normal use: ""
-smtpfwdd_flags=NO	# for normal use: "", and no "-bd" above.
+smtpfwdd_flags=NO	# for normal use: ""; be sure to configure smtpd(8)     
+			# and sendmail(8) to use MSA only                       
 named_flags=NO		# for normal use: ""
 rdate_flags=NO		# for normal use: name of RFC868 timeserver
 timed_flags=NO		# for normal use: ""