fix: validator throws 422 with message

[thebrownfox]

As mentioned in #168 the error response tell little to nothing.

There are 2 possible solutions:

1. Patch it here and add Boom with right (I guess the right one is 422) statusCode
2. Patch hapi. From the line I patched is the error thrown and processed here and follows here where it throws error without the details for what ever reason. Even if it will be done in hapi, we won't have statusCode: 422.

[dcharbonnier]

do you think you could separate the style changes from this PR @thefoxie
even if they are justified, they need to be addressed on a different PR

[thebrownfox]

@dcharbonnier
It was changed by eslint automatically. I could do that for sure.

[thebrownfox]

@dcharbonnier like this?

[dcharbonnier]

no @thefoxie as you can see, there is plenty of unrelated differences here https://github.com/krakenjs/hapi-openapi/pull/191/files

[tlivings]

Waiting to remove style changes.