ports/179591: sysutils/kdirstat: Update to version 2.7.4

[edwin at FreeBSD.org]

Synopsis: sysutils/kdirstat: Update to version 2.7.4

Responsible-Changed-From-To: freebsd-ports-bugs->miwi
Responsible-Changed-By: edwin
Responsible-Changed-When: Sat Jun 15 18:11:20 UTC 2013
Responsible-Changed-Why: 
miwi@ wants this submitter's PRs (via the GNATS Auto Assign Tool)

http://www.freebsd.org/cgi/query-pr.cgi?pr=179591