Update validation for new BE VAT numbers

I am at DrupalCon Lille and will give this one a try!

I reviewed the patch and made a content type with a VAT number field. The validation seems to work correctly.

Thanks for the review Mathieu

+++ b/src/Controller/VatNumberController.php
@@ -118,10 +118,10 @@ class VatNumberController extends ControllerBase {
       // Bukgaria.

Maybe also fix this typo? 😉

Thanks for the issue and the review. I'll indeed pick up the typo aswell.

Automatically closed - issue fixed for 2 weeks with no activity.