add some quoting

git-svn-id: https://svn.r-project.org/R/trunk@63743 00db46b3-68df-0310-9c12-caf00c1e9a41
update

git-svn-id: https://svn.r-project.org/R/trunk@63745 00db46b3-68df-0310-9c12-caf00c1e9a41
split NEWS.Rd at 3.0.0

git-svn-id: https://svn.r-project.org/R/trunk@63746 00db46b3-68df-0310-9c12-caf00c1e9a41