Fix compilation on platforms where kevent.data size is bigger than void *
Fix compilation on platforms where kevent.data size is bigger than void *

It happens e.g. with GCC build on 32-bit FreeBSD12

https://github.com/libinotify-kqueue/libinotify-kqueue/issues/4

wulf7/libinotify-kqueue,wulf7/libinotify-kqueue,wulf7/libinotify-kqueue