message: fixed swoole_server->taskWaitMulti timeout error.
diff: @@ -2412,16 +2412,17 @@ PHP_METHOD(swoole_server, taskWaitMulti)
  SW_HASHTABLE_FOREACH_END();
  double _now = swoole_microtime();
  -
  while (n_task > 0)
  {
  task_notify_pipe->timeout = timeout;
  int ret = task_notify_pipe->read(task_notify_pipe, &notify, sizeof(notify));
  if (ret > 0 && *finish_count < n_task)
  {
  - timeout -= (swoole_microtime() - _now);
  + if (swoole_microtime() - _now < timeout)
  + {
  continue;
  }
  + }
  break;
  }
  