docs/116080: PREFIX is documented, but not the more important LOCALBASE

[tabthorpe at FreeBSD.org]

Synopsis: PREFIX is documented, but not the more important LOCALBASE

Responsible-Changed-From-To: tabthorpe->freebsd-doc
Responsible-Changed-By: tabthorpe
Responsible-Changed-When: Sat Apr 10 04:46:18 UTC 2010
Responsible-Changed-Why: 
Back to the heap, I have made no positive progress on this, maybe
somebody else can do it justice

http://www.freebsd.org/cgi/query-pr.cgi?pr=116080