ConvertToSnakeCase - Make compatible with Illuminate TransformsRequest

[dshannon-ifs]

Hello,

Use of ConvertToSnakeCase (laravel 5.8) throws an error "Declaration of Flugg\Responder\Http\Middleware\ConvertToSnakeCase::cleanArray(array $data) should be compatible with Illuminate\Foundation\Http\Middleware\TransformsRequest::cleanArray(array $data, $keyPrefix = '')".

To resolve method should be declared:

protected function cleanArray(array $data, $keyPrefix = '')

[flugg]

Oh, thanks for letting me know. Seems like there was a breaking change with the signature at some point. I'll look into it.