"shutdown" method cannot close manager and worker process

[jyoxun]

In 1.7.2 version, use the method like "$serv->shutdown();".
It will close master process only, but the manager and worker process still alive.

Here is the terminal output, fyi.
before:
root@john:~# ps aux|grep swoole
root 9005 0.1 0.9 201308 13884 pts/0 Sl+ 16:44 0:00 php-swoole-master-9005
root 9007 0.0 0.2 193112 4304 pts/0 S+ 16:44 0:00 php-swoole-manager
root 9010 0.0 0.3 193428 6096 pts/0 S+ 16:44 0:00 php-swoole-worker-9010
root 9011 0.0 0.3 193428 6096 pts/0 S+ 16:44 0:00 php-swoole-worker-9011
root 9012 0.0 0.4 193372 6180 pts/0 S+ 16:44 0:00 php-swoole-worker-9012
root 9013 0.0 0.4 193372 6180 pts/0 S+ 16:44 0:00 php-swoole-worker-9013

after:
root@john:~# ps aux|grep swoole
root 9007 0.0 0.2 193112 4304 pts/0 S 16:44 0:00 php-swoole-manager
root 9010 0.0 0.4 193428 6444 pts/0 S 16:44 0:00 php-swoole-worker-9010
root 9011 0.0 0.3 193428 6096 pts/0 S 16:44 0:00 php-swoole-worker-9011
root 9012 0.0 0.4 193372 6180 pts/0 S 16:44 0:00 php-swoole-worker-9012
root 9013 0.0 0.4 193372 6180 pts/0 S 16:44 0:00 php-swoole-worker-9013

[matyhtf]

Fixed in 1.7.3