Extra newlines break docopt

[NateEag]

Running the following program resulted in no output:

#! /usr/bin/env node

var docopt = require('docopt');

var doc = 'Usage:\n\n' +
           '  test.js [options] [<example-name>...]\n' +
           'Options:\n' +
           '  --url=url        URL to run the tests on.\n';

var options = docopt.docopt(doc);

I removed the second \n from the first line of the usage string, then the message was output as I expected when I ran the program.

This is with docopt 0.4.1, installed via npm.