docs/101365: [patch] Document DESTDIR support in porters-handbook

[Pav Lucistnik]

Synopsis: [patch] Document DESTDIR support in porters-handbook

Responsible-Changed-From-To: freebsd-doc->pav
Responsible-Changed-By: pav
Responsible-Changed-When: Fri Aug 4 17:19:58 UTC 2006
Responsible-Changed-Why: 
This text will need some work. I'll try to fix it up over weekend.

http://www.freebsd.org/cgi/query-pr.cgi?pr=101365