Better debug message in audio_reserve.c.

git-svn-id: http://subversion.jackaudio.org/jack/jack2/trunk/jackmp@3512 0c269be4-1314-0410-8aa9-9f06e86f4224

dbus/audio_reserve.c

@@ -67,7 +67,7 @@ SERVER_EXPORT void* audio_acquire(int num)
                  NULL,
                  &error)) < 0) {
 
-        jack_error("Failed to acquire device: %s", error.message ? error.message : strerror(-e));
+        jack_error("Failed to acquire device name : %s error : %s", audio_name, (error.message ? error.message : strerror(-e)));
         return NULL;
     }