Hubot CPU usage script written in Javascript instead of coffeescript nonsense

cpu.js

// Description:
//   Report the top 5 local CPU processes
//
// Dependencies:
//
// Configuration:
//   None
//
// Commands:
//   hubot cpu usage ?  - show the top 5 processes
//
// Author:
//   Tim Child @ Cantemo
var sys = require('util');
var exec = require('child_process').exec;
var child;

module.exports = function(robot) {
  robot.respond(/cpu usage/i, function(msg){
    child = exec("top -b -n 1 | head -n 12 | tail -n 5", function (error, stdout, stderr) {
    //child = exec("top -b -n 1 | head -n 12  | tail -n 5", (error, stdout, stderr) {
      if (error !== null) {
        msg.send(error);
      } else {
        msg.reply(stdout);
     }
    })
  });
}