Cosmetics.

git-svn-id: http://svn.r-project.org/R/trunk@62122 00db46b3-68df-0310-9c12-caf00c1e9a41
pbeta(*, lower.tail=FALSE, log.p=TRUE) fixes PR#15162 (incl pt(), pf())

git-svn-id: http://svn.r-project.org/R/trunk@62123 00db46b3-68df-0310-9c12-caf00c1e9a41
example illustrating pt() <-> pf()

git-svn-id: http://svn.r-project.org/R/trunk@62124 00db46b3-68df-0310-9c12-caf00c1e9a41