`deonieify` is redundant in Node >8

[johnbeech]

I thought it was worth putting a note on on this project; denodeify is now effectively redundant.
If you're using Node > 8, then util.promisify does the same job.

I was using denodeify (thanks, its been great):

const glob = require('glob')
const denodeify = require('denodeify')
const find = denodeify(glob)

module.exports = find

But now I use the inbuilt promisify:

const glob = require('glob')
const { promisify } = require('util')
const find = promisify(glob)

module.exports = find