ports/179175: devel/m17n-db: update to 1.6.4

[pawel at FreeBSD.org]

Synopsis: devel/m17n-db: update to 1.6.4

Responsible-Changed-From-To: freebsd-ports-bugs->pawel
Responsible-Changed-By: pawel
Responsible-Changed-When: Sun Jun 2 18:10:24 UTC 2013
Responsible-Changed-Why: 
I'll take it.

http://www.freebsd.org/cgi/query-pr.cgi?pr=179175