[Rd] webpage link (to MacOSX check summaries) is broken (PR#7405)

[Kurt Hornik]

>>>>> smyth  writes:

> The link to "MacOS X check summary" on the page
>    http://cran.r-project.org/src/contrib/PACKAGES.html

> is broken.

Gordon,

Thanks but ... this is really not a bug in R, but a problem with CRAN.

Stefano: the link points to

  http://cran.r-project.org/bin/macosx/r-devel/check/checkSummaryOSX.html

where did this go?

Best
-k