Add documentation for cli_banner

git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@3775 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/varnishd.1

@@ -414,6 +414,11 @@ This parameter does not apply to pipe.
 .Pp
 The default is
 .Dv 60 seconds
+.It Va cli_banner
+Whether to print a banner whenever a client connects to the CLI interface.
+.Pp
+The default is
+.Dv on .
 .It Va client_http11
 Whether to force the use of HTTP/1.1 when responding to client
 requests, or just use the same protocol version as that used by the