fix bug: set max_coro_num doesn't work
fix bug: set max_coro_num doesn't work

swoole/swoole-src,LinkedDestiny/swoole-src,AJSoft/swoole-src,swoole/swoole-src,tutanhamon/swoole-src,swoole/swoole-src,tutanhamon/swoole-src,tutanhamon/swoole-src,tutanhamon/swoole-src,AJSoft/swoole-src,LinkedDestiny/swoole-src,tutanhamon/swoole-src,swoole/swoole-src,LinkedDestiny/swoole-src,AJSoft/swoole-src,tutanhamon/swoole-src,LinkedDestiny/swoole-src,swoole/swoole-src,AJSoft/swoole-src,AJSoft/swoole-src,AJSoft/swoole-src,LinkedDestiny/swoole-src,swoole/swoole-src,tutanhamon/swoole-src,swoole/swoole-src,LinkedDestiny/swoole-src,AJSoft/swoole-src,LinkedDestiny/swoole-src