Fixed invalid knockout data binding

Author: YevSent

app/code/Magento/Braintree/view/frontend/web/template/payment/paypal.html

@@ -12,7 +12,7 @@
                data-bind="attr: {'id': getCode()}, value: getCode(), checked: isChecked, click: selectPaymentMethod, visible: isRadioButtonVisible()" />
         <label class="label" data-bind="attr: {'for': getCode()}">
             <!-- PayPal Logo -->
-            <img data-bind="attr: {src: getPaymentAcceptanceMarkSrc(), alt: $t('Acceptance Mark')}, title: $t('Acceptance Mark')}"
+            <img data-bind="attr: {src: getPaymentAcceptanceMarkSrc(), alt: $t('Acceptance Mark'), title: $t('Acceptance Mark')}"
                  class="payment-icon"/>
             <!-- PayPal Logo -->
             <span text="getTitle()"></span>