ports/173606: [exp-run] devel/bison: update to 2.6.5

[edwin at FreeBSD.org]

Synopsis: [exp-run] devel/bison: update to 2.6.5

Responsible-Changed-From-To: freebsd-ports-bugs->johans
Responsible-Changed-By: edwin
Responsible-Changed-When: Tue Nov 13 15:10:39 UTC 2012
Responsible-Changed-Why: 
Submitter is maintainer and has GNATS access (via the GNATS Auto Assign
Tool)

http://www.freebsd.org/cgi/query-pr.cgi?pr=173606