Fix _validateExpDate(). Comparing a 2-digit credit card year to the 4-digit current year always fails. Additionally, make sure the expiration date is in the correct format.
Fix _validateExpDate(). Comparing a 2-digit credit card year to the 4-digit current year always fails. Additionally, make sure the expiration date is in the correct format.


git-svn-id: 72036dfd9e6118e2ec037b5ea815d2f2a70bc09b@152206 c90b9560-bf6c-de11-be94-00142212c4b1

pear/Payment_Process