tweaks

git-svn-id: https://svn.r-project.org/R/trunk@67132 00db46b3-68df-0310-9c12-caf00c1e9a41
tweaks

git-svn-id: https://svn.r-project.org/R/trunk@67133 00db46b3-68df-0310-9c12-caf00c1e9a41
update for port to R-patched

git-svn-id: https://svn.r-project.org/R/trunk@67134 00db46b3-68df-0310-9c12-caf00c1e9a41
R CMD check --as-cran reports if there are \donttest examples

git-svn-id: https://svn.r-project.org/R/trunk@67137 00db46b3-68df-0310-9c12-caf00c1e9a41