Fix warning in FPM

fpm_event_kqueue_clean()

Author: Girgias

sapi/fpm/fpm/events/kqueue.c

@@ -28,7 +28,7 @@
 #include <errno.h>
 
 static int fpm_event_kqueue_init(int max);
-static int fpm_event_kqueue_clean();
+static int fpm_event_kqueue_clean(void);
 static int fpm_event_kqueue_wait(struct fpm_event_queue_s *queue, unsigned long int timeout);
 static int fpm_event_kqueue_add(struct fpm_event_s *ev);
 static int fpm_event_kqueue_remove(struct fpm_event_s *ev);