remove the brackets in aliases map declaration, they look ugly

src/etc/mail/smtpd.conf

@@ -1,11 +1,11 @@
-#	$OpenBSD: smtpd.conf,v 1.2 2009/11/03 22:32:10 gilles Exp $
+#	$OpenBSD: smtpd.conf,v 1.3 2012/05/12 18:47:41 gilles Exp $
 
 # This is the smtpd server system-wide configuration file.
 # See smtpd.conf(5) for more information.
 
 listen on lo0
 
-map "aliases" { source db "/etc/mail/aliases.db" }
+map "aliases" source db "/etc/mail/aliases.db"
 
 accept for local alias aliases deliver to mbox
 accept for all relay