ports/181057: databases/grass: Update to version 6.4.3

[miwi at FreeBSD.org]

Synopsis: databases/grass: Update to version 6.4.3

Responsible-Changed-From-To: freebsd-ports-bugs->miwi
Responsible-Changed-By: miwi
Responsible-Changed-When: Thu Jan 23 15:45:40 UTC 2014
Responsible-Changed-Why: 
I'll take it.

http://www.freebsd.org/cgi/query-pr.cgi?pr=181057