-h option defined twice

[reubano]

mocha-phantomjs --help

  Usage: mocha-phantomjs [options] page

  Options:

    -h, --help                   output usage information
...
    -h, --header <name>=<value>  specify custom header
...

[nathanboktae]

This is a commander bug as it seems to always add a -h for help even though we define an option for it.