old_contents: 'use strict';
  
  var codename = require('./src/codename');
  var argv = require('minimist')(process.argv.slice(2));
  
  codename(argv._[0] || 'Special:Random').then(function(name) {
      console.log(name);
  });
  
new_contents: #!/usr/bin/env node
  'use strict';
  
  var codename = require('./src/codename');
  var argv = require('minimist')(process.argv.slice(2));
  
  codename(argv._[0] || 'Special:Random').then(function(name) {
      console.log(name);
  });
  
subject: add hashbang