Results 2 issues of arstercz

Maybe someone don't want to print many lines when the file is too big or read large data from stdin.

### 问题说明 在通过 redis-cli 连接 pika 手动执行 `config rewrite(redis sentinel 切换时也会调用)` 时出现崩溃的现象, 如下所示: ``` 127.0.0.1:9221> config rewrite Could not connect to Redis at 127.0.0.1:9221: Connection refused not connected> ``` 程序日志则包含以下信息,...

bug