ring-client-gnome -> gnome-ring

Refer to the actual gnome-ring executable name
in the dring manpage.

Change-Id: I8a32c1c1124f10532fc824cafeb0a820cf01e571

man/dring.pod

@@ -10,7 +10,7 @@ B<dring> [OPTION]...
 
 Ring is meant to be a robust enterprise-class desktop phone. It provides functions like call transfer, call hold, multiple lines, multiple accounts support.
 Ring audio layer is build upon a native ALSA interface and and a native PulseAudio interface.
-B<dring> is the core of Ring; it communicates with the client side through DBus. You need to install a client to use the daemon, for instance GTK+ client, B<ring-client-gnome>.
+B<dring> is the core of Ring; it communicates with the client side through DBus. You need to install a client to use the daemon, for instance GTK+ client, B<gnome-ring>.
 
 =head1 OPTIONS