Created attachment 337383 [details]
Proposed patch to remove the useless message.

Description of problem:
It seems that both gnome-volume-control and gnome-volume-control-applet give
debug message "Disabling debugging" when started without debug. The message
itself might have some sense if someone was to call gvc_log_set_debug in the
middle of the running session. I can't imagine a use case where this would be
useful. However, as it stands, every start of either executable gives this ugly
message on stdout. It should be removed.