Hanging commas

gistfile1.txt

// Totally intolerable
var express = require('express')
  , routes = require('./routes')
  , http = require('http');
  
// Better
var express = require('express'),
  routes = require('./routes'),
  http = require('http');
  
// Probably best
var express = require('express');
var routes = require('./routes');
var http = require('http');