pify(setTimeout) does not work correctly in Node.js

[feross]

This works with util.promisify():

const { promisify } = require('util')
const setTimeoutAsync = promisify(setTimeout)

async function init () {
  console.log('Waiting 5 seconds...')
  await setTimeoutAsync(5000)
  console.log('Done!')
}

init()

It would be nice if it worked with pify() too!

Not sure if this requires using util.promisify() when running in Node.js, as described in #41 or if it can just be implemented by reading the util.promisify.custom symbol on the function, as described in the Node.js docs: https://nodejs.org/api/util.html#util_custom_promisified_functions

[sindresorhus]

If you want magic behavior like that, I think it's better to just use util.promisify directly. I mostly use util.promisify these days.