In addition:
* moved module.exports to the bottom
* no single-line if statements
* no if statements without a {
* const for requires
* array declarations get spaces inside [ ]
* 'use strict' in all .js files
PR-URL: https://github.com/nodejs/node-gyp/pull/1794
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: João Reis <reis@janeasystems.com>
