ports/117142: Update R to 2.6.0

[linimon at FreeBSD.org]

Synopsis: Update R to 2.6.0

Responsible-Changed-From-To: freebsd-bugs->freebsd-ports-bugs
Responsible-Changed-By: linimon
Responsible-Changed-When: Fri Oct 12 20:42:39 UTC 2007
Responsible-Changed-Why: 
ports PR.

http://www.freebsd.org/cgi/query-pr.cgi?pr=117142