code: function help (options) {
      const { cmds, desc } = options
      let commands = [
          '',
          'Commands:',
          ''
      ]
      
      cmds.forEach(function (v) {
          let item = pad(v.command + (v.aliases ? '|' + v.aliases : '')) + v.desc
          commands.push(item.replace(/^/gm, '    '))
      })
      
      const optionsList = [
          '',
          'Options:',
          '',
          (pad('-h, --help') + 'output usage information').replace(/^/gm, '    '),
          (pad('-v, --version') + 'output the version number').replace(/^/gm, '    '),
          '',
          ''
      ]
      
      process.stdout.write(['', desc].concat(commands, optionsList).join('\n'))
      process.exit()
  }
docs: help
  
  @param {Object} options