Scrutinizer Auto-Fixes

@felixgirault requested this pull request.

This patch was automatically generated as part of the following inspection:
https://scrutinizer-ci.com/g/felixgirault/essence/inspections/3e87bc17-0cad-4ff9-a4cc-8f15ee3dda0e

Enabled analysis tools:
 - PHP Analyzer
 - PHP PDepend
 - External Code Coverage
 - PHP Similarity Analyzer
 - PHP Change Tracking Analyzer