Comment 2 for bug 1393472

I don't see the necessity for a confirmation. The first line that defines the fields to import has a pretty strict syntax, we have a couple of fields that are required and we have a fixed set of fields that are valid. If one of the required fields is not identifiable or an invalid field appears, the import is canceled. So basically the first line of a valid input file can only contain semicolons or commas but never both. Or am I missing something?