rstudio/rmarkdown — pull request #296 by jmcphers (2014-10-27 15:55:21+00:00)
Title: Quote value of PATH environment variable on Darwin

On OS X, `find_program` will fail if `$PATH` contains unescaped spaces; this change addresses the issue by quoting the value of `$PATH` on the command line (and escaping any quotes in `$PATH` itself.)