ports/172726: sysutils/shlock: Update to version 2.5.3

[madpilot at FreeBSD.org]

Synopsis: sysutils/shlock: Update to version 2.5.3

Responsible-Changed-From-To: freebsd-ports-bugs->madpilot
Responsible-Changed-By: madpilot
Responsible-Changed-When: Sun Nov 4 10:37:48 UTC 2012
Responsible-Changed-Why: 
I'll take it.

http://www.freebsd.org/cgi/query-pr.cgi?pr=172726