yihui/knitr — pull request #490 by viking (2013-02-26 22:27:33+00:00)
Title: Add envir as parameter to knit2pdf

Also add "@param envir" line to knit2html documentation so that roxygen
doesn't overwrite knit2html man page.

The whitespace changes in knit2pdf.Rd are due to re-running `document('.')`