ports/147990: Update: x11/xlockmore to 5.31

[makc at FreeBSD.org]

Synopsis: Update: x11/xlockmore to 5.31

Responsible-Changed-From-To: freebsd-ports-bugs->makc
Responsible-Changed-By: makc
Responsible-Changed-When: Sat Jun 19 12:23:19 UTC 2010
Responsible-Changed-Why: 
I'll take it.

http://www.freebsd.org/cgi/query-pr.cgi?pr=147990