Using `tiny-invariant` for error messages

[neoncube2]

query-string contains a descriptive error message, which is great for debugging but inflates bundle size.

Would you consider using tiny-invariant for this error message, so that its minified in production?

I'd be happy to open a PR :)

[sindresorhus]

No thanks :)

[neoncube2]

@sindresorhus Your call, obviously, but any reason in particular? :P