MAGETWO-35824: [MX] [Dragons] Code coverage - Sprint 67

MAGETWO-36990: Coverage or refactoring method

- Fix code style

Author: igrybkov

app/code/Magento/ConfigurableProduct/Model/OptionRepository.php

@@ -220,7 +220,7 @@ public function validateNewOptionData(\Magento\ConfigurableProduct\Api\Data\Opti
     }
 
     /**
-     * @param $sku
+     * @param string $sku
      * @param \Magento\ConfigurableProduct\Api\Data\OptionInterface $option
      * @param \Magento\ConfigurableProduct\Model\Product\Type\Configurable\Attribute $configurableAttribute
      * @throws CouldNotSaveException
@@ -262,7 +262,7 @@ private function saveExistingOption(
     }
 
     /**
-     * @param $sku
+     * @param string $sku
      * @param \Magento\ConfigurableProduct\Api\Data\OptionInterface $option
      * @param \Magento\ConfigurableProduct\Model\Product\Type\Configurable\Attribute $configurableAttribute
      * @return void