sync the spamd example to that used in spamd(8); ok beck

src/etc/pf.conf

@@ -1,4 +1,4 @@
-#	$OpenBSD: pf.conf,v 1.48 2009/09/11 13:21:00 sthen Exp $
+#	$OpenBSD: pf.conf,v 1.49 2009/09/17 06:39:03 jmc Exp $
 #
 # See pf.conf(5) for syntax and examples.
 # Remember to set net.inet.ip.forwarding=1 and/or net.inet6.ip6.forwarding=1
@@ -19,9 +19,10 @@ pass		# to establish keep-state
 #table <spamd-white> persist
 #table <nospamd> persist file "/etc/mail/nospamd"
 #pass in on egress proto tcp from any to any port smtp \
-#	rdr-to 127.0.0.1 port spamd
+#    rdr-to 127.0.0.1 port spamd
 #pass in on egress proto tcp from <nospamd> to any port smtp
-#pass in on egress proto tcp from <spamd-white> to any port smtp
+#pass in log on egress proto tcp from <spamd-white> to any port smtp
+#pass out log on egress proto tcp to any port smtp
 
 
 #block in quick from urpf-failed to any	# use with care