Rename basket CC CVN error message.

ecommerce/static/js/pages/basket_page.js

@@ -127,7 +127,7 @@ define([
             } else if (typeof cardType === 'undefined' || !isCardTypeSupported(cardType.name)) {
                 appendCardValidationErrorMsg(event, cardNumberField, 'Unsupported card type');
             } else if (cvnNumber.length !== cardType.cvnLength || !Number.isInteger(Number(cvnNumber))) {
-                appendCardValidationErrorMsg(event, cvnNumberField, 'Invalid CVN');
+                appendCardValidationErrorMsg(event, cvnNumberField, 'Invalid security number');
             }
 
             if (!Number.isInteger(Number(cardExpiryMonth)) ||

ecommerce/static/js/test/specs/pages/basket_page_spec.js

@@ -363,11 +363,11 @@ define([
                         $('input[name=card_number]').val(validCardNumber);
                         $('input[name=card_cvn]').val('123');
                         $('#payment-button').click();
-                        expect($('input[name=card_cvn] ~ .help-block span').text()).toEqual('Invalid CVN');
+                        expect($('input[name=card_cvn] ~ .help-block span').text()).toEqual('Invalid security number');
 
                         $('input[name=card_cvn]').val('123b');
                         $('#payment-button').click();
-                        expect($('input[name=card_cvn] ~ .help-block span').text()).toEqual('Invalid CVN');
+                        expect($('input[name=card_cvn] ~ .help-block span').text()).toEqual('Invalid security number');
 
                         $('input[name=card_cvn]').val(validCvn);
                         $('#payment-button').click();