Fix #66908: php-fpm reload leaks epoll_create() file descriptor

This patch fixes descriptor leak which could lead to DoS once Max open files is reached
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  Fix #66908: php-fpm reload leaks epoll_create() file descriptor
Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
  Fix #66908: php-fpm reload leaks epoll_create() file descriptor