Change the keyword "ssl" to "tls" to reflect reality since we

effectively disabled support for the SSL protocols.  SSL remains a
common term describing SSL/TLS, there is some controvery about this
change, and the name really doesn't matter, but I feel confident about
it now.
(btw., sthen@ pointed out some historical context:
http://tim.dierks.org/2014/05/security-standards-and-name-changes-in.html)
OK benno@, with input from tedu@

src/etc/examples/relayd.conf

@@ -1,4 +1,4 @@
-# $OpenBSD: relayd.conf,v 1.2 2014/10/21 02:29:54 lteo Exp $
+# $OpenBSD: relayd.conf,v 1.3 2014/12/12 10:05:09 reyk Exp $
 #
 # Macros
 #
@@ -34,9 +34,9 @@ redirect www {
 }
 
 #
-# Relay and protocol for HTTP layer 7 loadbalancing and SSL acceleration
+# Relay and protocol for HTTP layer 7 loadbalancing and SSL/TLS acceleration
 #
-http protocol httpssl {
+http protocol https {
 	match request header append "X-Forwarded-For" value "$REMOTE_ADDR"
 	match request header append "X-Forwarded-By" \
 	    value "$SERVER_ADDR:$SERVER_PORT"
@@ -45,14 +45,14 @@ http protocol httpssl {
 	# Various TCP performance options
 	tcp { nodelay, sack, socket buffer 65536, backlog 128 }
 
-#	ssl { no tlsv1.0, ciphers HIGH }
-#	ssl session cache disable
+#	tls { no tlsv1.0, ciphers HIGH }
+#	tls session cache disable
 }
 
-relay wwwssl {
-	# Run as a SSL accelerator
-	listen on $ext_addr port 443 ssl
-	protocol httpssl
+relay wwwtls {
+	# Run as a SSL/TLS accelerator
+	listen on $ext_addr port 443 tls
+	protocol https
 
 	# Forward to hosts in the webhosts table using a src/dst hash
 	forward to <webhosts> port http mode loadbalance \