MAGETWO-47881: [GitHub]Magento\Framework\DataObject::__call() - print_r() is dangerous

Author: Joan He

app/code/Magento/Paypal/Model/Api/Nvp.php

@@ -1226,7 +1226,7 @@ public function call($methodName, array $request)
         $http->close();
 
         if (!$this->_validateResponse($methodName, $response)) {
-            $this->_logger->critical(new \Exception(__("PayPal response hasn't required fields.")));
+            $this->_logger->critical(new \Exception(__('PayPal response hasn\'t required fields.')));
             throw new \Magento\Framework\Exception\LocalizedException(
                 __('Something went wrong while processing your order.')
             );

app/code/Magento/Paypal/Model/Payflow/Request.php

@@ -53,7 +53,7 @@ public function __call($method, $args)
                 return isset($this->_data[$key]);
         }
         throw new \Magento\Framework\Exception\LocalizedException(
-            __("Invalid method %1::%2(%3)", get_class($this), $method, print_r($args, 1))
+            __("Invalid method %1::%2", get_class($this), $method)
         );
     }
 }