docs/136061: grammar nits in ipfw.8

[maxim at FreeBSD.org]

Synopsis: grammar nits in ipfw.8

State-Changed-From-To: patched->closed
State-Changed-By: maxim
State-Changed-When: Thu Aug 6 08:56:04 UTC 2009
State-Changed-Why: 
Merged to RELENG_7.

http://www.freebsd.org/cgi/query-pr.cgi?pr=136061