Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.Approved by: re (implicit)Sponsored by: The FreeBSD Foundation
Copy head to stable/9 as part of 9.0-RELEASE release cycle.Approved by: re (implicit)
Correct typos, mostly s/ a / an / where appropriate. Some whitespace cleanup,especially in troff files.
Add the IPFilter how-to and other related documents to the base installso that users gets ipfilter examples without a source install.PR: 26763Submitted by: Cyrille Lefevre <clefevre@poboxes.com>