registryKey is dropping path from URL

[zarenner]

In registry-key.js, there's currently the following call to url.format, which currently is dropping the path:

const formatted = url.format({
    host: parsed.host,
    path: parsed.path,
    slashes: parsed.slashes
  })`

It looks like (presumably after nodejs/node#303) 'path' is no longer supported, and we need to use 'pathname' instead.
https://nodejs.org/api/url.html#url_url_format_urlobject

[zkat]

Thanks for the report! I would love to get a patch for this. I'd rather get community participation than fix it myself, and you did a great job of outlining the fix for it.

[zkat]

For the sake of cross-linking: fixing this bug will fix npm/npm#16528