Improve debug messages

player.c

@@ -2184,7 +2184,7 @@ static void *player_thread_func(void *arg) {
   if (rc)
     debug(1, "Error destroying vol_mutex variable.");
   
-  debug(1, "Player thread exit");
+  debug(1, "Player thread exit on RTSP conversation thread %d.",conn->connection_number);
   if (outbuf)
     free(outbuf);
   if (silence)

rtsp.c

@@ -1821,7 +1821,7 @@ static void *rtsp_conversation_thread_func(void *pconn) {
     playing_conn = NULL;
     pthread_mutex_unlock(&play_lock);
 	}
-  debug(3, "RTSP conversation thread %d terminated.",conn->connection_number);
+  debug(1, "RTSP conversation thread %d terminated.",conn->connection_number);
   //  please_shutdown = 0;
   conn->running = 0;
   return NULL;