update

git-svn-id: https://svn.r-project.org/R/trunk@66500 00db46b3-68df-0310-9c12-caf00c1e9a41
add comment about clang 3.5

git-svn-id: https://svn.r-project.org/R/trunk@66501 00db46b3-68df-0310-9c12-caf00c1e9a41
Log check status before output.

git-svn-id: https://svn.r-project.org/R/trunk@66503 00db46b3-68df-0310-9c12-caf00c1e9a41
Install dependencies without suggests.

git-svn-id: https://svn.r-project.org/R/trunk@66504 00db46b3-68df-0310-9c12-caf00c1e9a41