docs/174061: Typo in Handbook 21.3.2

[eadler at FreeBSD.org]

Synopsis: Typo in Handbook 21.3.2

Responsible-Changed-From-To: freebsd-doc->eadler
Responsible-Changed-By: eadler
Responsible-Changed-When: Sun Dec 2 20:00:02 UTC 2012
Responsible-Changed-Why: 
I'll take it.

http://www.freebsd.org/cgi/query-pr.cgi?pr=174061