message: update swoole_version()
diff: @@ -1336,9 +1336,7 @@ PHP_RSHUTDOWN_FUNCTION(swoole)
  PHP_FUNCTION(swoole_version)
  {
  - char swoole_version[32] = {0};
  - snprintf(swoole_version, sizeof(PHP_SWOOLE_VERSION), "%s", PHP_SWOOLE_VERSION);
  - SW_RETURN_STRING(swoole_version, 1);
  + SW_RETURN_STRING(PHP_SWOOLE_VERSION, 1);
  }
  static uint32_t hashkit_one_at_a_time(const char *key, size_t key_length)
  