[Xymon] Xymon client doesn't clean up all of its children

~~ I can't verify on other OSes right now, so I'm hoping someone can chime in ~~

On FreeBSD when I stop the Xymon client process it doesn't clean up all of its children. Primarily you'll find that the vmstat command is not sent a signal and continues to run ... indefinitely?

As a result, restarting the Xymon client leaves vmstat processes around that really should not be there. I'm working around this right now, but is it possible this is being seen on other platforms and it's a bug in the client shutdown code?

Thanks!