redcloth --version (return code: 0)
RedCloth 4.2.9
redcloth --help (return code: 0)
Usage: redcloth [options] [redcloth_formatted.txt]
If no file specified, STDIN will be used. If you are typing input, you can send an EOF by pressing ^D (^Z on Windows)
-o, --output STYLE Output format (defaults to html)