Scrutinizer Auto-Fixes

@kilip requested this pull request.

This patch was automatically generated as part of the following inspection:
https://scrutinizer-ci.com/g/phpguard/listen/inspections/65032604-f5ab-4c85-bdf8-954095e25227

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