debug msg - varispeed recording

git-svn-id: svn://localhost/ardour2/branches/3.0@13228 d708f5d6-7413-0410-9779-e7cbd77b26cf

libs/ardour/session_transport.cc

@@ -1017,6 +1017,8 @@ Session::set_transport_speed (double speed, bool abort, bool clear_state, bool a
 
 	if (actively_recording() && speed != 1.0 && speed != 0.0) {
 		/* no varispeed during recording */
+		DEBUG_TRACE (DEBUG::Transport, string_compose ("No varispeed during recording cur_speed %1, frame %2\n", 
+						       _transport_speed, _transport_frame));
 		return;
 	}