fix word issue, as reported by hans

src/etc/mail/spamd.conf

@@ -1,11 +1,11 @@
-# $OpenBSD: spamd.conf,v 1.4 2012/05/14 16:58:46 beck Exp $
+# $OpenBSD: spamd.conf,v 1.5 2016/03/14 21:36:52 jmc Exp $
 #
 # spamd(8) configuration file, read by spamd-setup(8).
 # See also spamd.conf(5).
 #
 # Configures lists for spamd(8).
 #
-# Strings follow getcap(3) convention escapes, other than you
+# Strings follow getcap(3) convention escapes, except you
 # can have a bare colon (:) inside a quoted string and it
 # will deal with it. See spamd-setup(8) for more details.
 #