8003: Using System Value for Base Currency Results in Config Error.

Author: nmalevanec

app/code/Magento/Directory/Model/Currency.php

@@ -82,7 +82,7 @@ class Currency extends \Magento\Framework\Model\AbstractModel
      * @param \Magento\Framework\Model\ResourceModel\AbstractResource $resource
      * @param \Magento\Framework\Data\Collection\AbstractDb $resourceCollection
      * @param array $data
-     * @param CurrencyConfig|null $currencyConfig
+     * @param CurrencyConfig $currencyConfig
      * @SuppressWarnings(PHPMD.ExcessiveParameterList)
      */
     public function __construct(