If there is a new line at the end of a set of custom field values, it adds an extra (blank) radio button.
Example:
Field named "Room Selection"
Values: (with an extra blank line here to emphasize)
Code:
Single Room ($391.50 before Aug 1st)
Double Room ($373.50 before Aug 1st)
Triple Room ($355.50 before Aug 1st)
No Room ($150 before Aug 1st)
I believe it would be best to remove this. It could be removed when the values are saved in the admin back end, I think.