What problem are you trying to solve?

I'm using Github API. On error (non-200 http status) got throws an HTTPError which is by default printed like this:

HTTPError: Response code 422 (Unprocessable Entity)
    at EventEmitter.<anonymous> (.../node_modules/got/dist/source/as-promise.js:118:31)
    at processTicksAndRejections (internal/process/task_queues.js:97:5) {
  name: 'HTTPError'
}

It gives me no information from the response body to be able to debug the issue (e.g on the local machine, or from the server logs in production).

Describe the feature

What I'd like to see is that it'd print the response.body, e.g by including it in Error.message (maybe limiting the maximum length, for sanity). Now I need to add this code to achieve the needed result:

await got(...)
  .catch(err => {
    console.log((err as HTTPError).response.body)
  })

Then it prints like this:

{"message":"Reference already exists","documentation_url":"https://developer.github.com/v3/git/refs/#create-a-reference"}

And suddenly the error message becomes very useful.

I'm aware that I can use Hooks, extend my got instance with some error-handling hook to achieve that (that what I'm going to try now). But wouldn't everyone benefit from such feature enabled by default in got? Or behind a non-default configuration flag?
...

Checklist

• I have read the documentation and made sure this feature doesn't already exist.