Scrutinizer Auto-Fixes

@mlantz requested this pull request.

This patch was automatically generated as part of the following inspection:
https://scrutinizer-ci.com/g/mlantz/quarx/inspections/603629c7-5215-4018-9c34-45e6cbdb1175

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