add section on -fbounds-check

git-svn-id: http://svn.r-project.org/R/trunk@62591 00db46b3-68df-0310-9c12-caf00c1e9a41
more sensible treatment of no-non-zero weights in lm.wfit

git-svn-id: http://svn.r-project.org/R/trunk@62593 00db46b3-68df-0310-9c12-caf00c1e9a41
cosmetic: no "," in  {<journal>} \bold{<vol>}

git-svn-id: http://svn.r-project.org/R/trunk@62594 00db46b3-68df-0310-9c12-caf00c1e9a41
tweak for array-bound checking

git-svn-id: http://svn.r-project.org/R/trunk@62595 00db46b3-68df-0310-9c12-caf00c1e9a41
Spelling.

git-svn-id: http://svn.r-project.org/R/trunk@62596 00db46b3-68df-0310-9c12-caf00c1e9a41
something about execute permissions in R CMD build

git-svn-id: http://svn.r-project.org/R/trunk@62597 00db46b3-68df-0310-9c12-caf00c1e9a41