docs/82290: [patch] update to handbook firewall PF section

[Peter N. M. Hansteen]

trhodes at FreeBSD.org writes:

> Joe, the link is no longer available, could you submit a new
> URL or better yet, a diff for review?  Thanks!

I'm not Joe, but I do have a diff for the PF section available at
<http://www.bsdly.net/~peter/freebsd/fw.diff> (posted to
doc at freebsd.org a while back, never got any feedback).

-- 
Peter N. M. Hansteen, member of the first RFC 1149 implementation team
http://bsdly.blogspot.com/ http://www.bsdly.net/ http://www.nuug.no/
"Remember to set the evil bit on all malicious network traffic"
delilah spamd[29949]: 85.152.224.147: disconnected after 42673 seconds.