message: close the pipe in stream_socket_pair.phpt
diff: @@ -24,6 +24,7 @@ Co::create(function()use(&$pipe){
  while ($buffer = fread($pipe[1], 1024)) {
  printf("Read byte: %d, beffer: %s\n", strlen($buffer), $buffer);
  }
  + fclose($pipe[1]);
  });
  