ports/158459: Update port: devel/naturaldoc to 1.52

[jlaffaye at FreeBSD.org]

Synopsis: Update port: devel/naturaldoc to 1.52

Responsible-Changed-From-To: freebsd-ports-bugs->jlaffaye
Responsible-Changed-By: jlaffaye
Responsible-Changed-When: Thu Jun 30 17:46:29 CEST 2011
Responsible-Changed-Why: 
I'll take it.

http://www.freebsd.org/cgi/query-pr.cgi?pr=158459