Scrutinizer Auto-Fixes

This patch was automatically generated as part of the following inspection:
https://scrutinizer-ci.com/g/yii2mod/yii2-cart/inspections/717ec674-8b3c-4481-9009-b0b6477fc1a8
Merge pull request #2 from disem/scrutinizer-patch-1

Scrutinizer Auto-Fixes