markup

git-svn-id: https://svn.r-project.org/R/trunk@63881 00db46b3-68df-0310-9c12-caf00c1e9a41
check files in vignettes dir for e.g. Sweave.sty

git-svn-id: https://svn.r-project.org/R/trunk@63882 00db46b3-68df-0310-9c12-caf00c1e9a41
always report vignettes with sources only in inst/doc

git-svn-id: https://svn.r-project.org/R/trunk@63885 00db46b3-68df-0310-9c12-caf00c1e9a41