docs/170223: IPv6 configuration section for 9.x is incorrect

[gjb at FreeBSD.org]

Synopsis: IPv6 configuration section for 9.x is incorrect

Responsible-Changed-From-To: gjb->freebsd-docs
Responsible-Changed-By: gjb
Responsible-Changed-When: Mon Sep 24 11:11:38 UTC 2012
Responsible-Changed-Why: 
Back to the pool for now.  I have not had time to make proper progress
on this.


http://www.freebsd.org/cgi/query-pr.cgi?pr=170223