title: User is undefined when changing discord bot presence
body: <p>Im trying to change my bot's presence using the following code:</p>
  <pre class="lang-js prettyprint-override"><code>const Discord = require('discord.js');
  const client = new Discord.Client();
  
  module.exports = {
      name: 'setstatus', //command name
      description: &quot;Sets the bot's presence&quot;, //command description
      args: true, //needs arguments? delete line if no
      usage: `&lt;online|invisible|dnd|idle&gt;`, //usage instructions w/o command name and prefix
      cooldown: 5, //cooldown in seconds, defaults to 3
      ownerOnly: true, //need to be the owner? delete line if no
      aliases: [],
      execute(message, args, prefix, user) { //inside here command stuff
          if (args[0] === 'online') {
              client.user.setPresence({ status: 'online' })
              message.channel.send(`Status set to ${args[0]}`)
          } else if (args[0] === 'idle') {
              client.user.setPresence({ status: 'idle' })
              message.channel.send(`Status set to ${args[0]}`)
          } else if (args[0] === 'invisible') {
              client.user.setPresence({ status: 'invisible' })
              message.channel.send(`Status set to ${args[0]}`)
          } else if (args[0] === 'dnd') {
              client.user.setPresence({ status: 'dnd' })
              message.channel.send(`Status set to ${args[0]}`)
          } else {
              message.channel.send(`Invalid argument: ${args[0]}. Valid arguments are:\nonline, idle, invisible, dnd`)
          }
      },
  };
  </code></pre>
  <p>But when executing this, I get the error 'user is not defined.' Any ideas?</p>