Scrutinizer Auto-Fixes

@disem requested this pull request.

This patch was automatically generated as part of the following inspection:
https://scrutinizer-ci.com/g/yii2mod/yii2-rbac/inspections/5c9f33d3-01ab-4a93-b53c-be2986d0da5c

Enabled analysis tools:
 - PHP Analyzer
 - PHP PDepend
 - PHP Similarity Analyzer
 - PHP Change Tracking Analyzer