Adds extra comma

[AaronVasquez]

Seems to be adding an extra comma. Might be a fat arrow compatibility issue?

request(
    {
      url: fetchUrl,
      method: 'GET',
    },
    (err, res, body) => {
      // Do whatever.
    }, // <== This comma is added.
  );

[AaronVasquez]

Also, I have trailing comma turned on.

[jlongster]

See #68. Right now trailing commas also put them in function args because that is soon going to be a JS standard and there is a babel extension to strip them out. But we plan on making trailingCommas a tiered config option.