Scrutinizer Auto-Fixes

This patch was automatically generated as part of the following inspection:
https://scrutinizer-ci.com/g/gregorybesson/PlaygroundGame/inspections/d1eb15ad-d9c0-4a76-a7b6-9a3f99d52700

Enabled analysis tools:
 - PHP Analyzer
 - PHP PDepend
 - PHP Similarity Analyzer
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Merge pull request #159 from gregorybesson/scrutinizer-patch-1

Scrutinizer Auto-Fixes