defaults: fix double-reported TCP port for http

The 'dcache ports' command reports the same port twice for the httpd 
domain.  This is because, when webadminHttpPort became port (patch RB
#4518) the duplication wasn't resolved.

This patch fixes this issue.

Require-book: no
Require-notes: no
Target: trunk
Request: 2.5
Request: 2.4
Patch: http://rb.dcache.org/r/5067/
Acked-by: Christian Bernardt

skel/share/defaults/httpd.properties

@@ -139,7 +139,7 @@ webadmin.alarm.dao.properties=
 #
 (immutable)httpd/net.ports.tcp-when-authenticated-is-false=${port}
 (immutable)httpd/net.ports.tcp-when-authenticated-is-true=${port} ${httpsPort}
-(immutable)httpd/net.ports.tcp=${port} ${net.ports.tcp-when-authenticated-is-${authenticated}}
+(immutable)httpd/net.ports.tcp=${net.ports.tcp-when-authenticated-is-${authenticated}}
 
 #
 #  ---- Obsolete properties