Scrutinizer Auto-Fixes

This patch was automatically generated as part of the following inspection:
https://scrutinizer-ci.com/g/aozora0000/request/inspections/b1273e8c-5476-420b-9da7-3c7077ec9108

Enabled analysis tools:
 - PHP Analyzer
 - PHP PDepend
 - PHP Similarity Analyzer
 - PHP Change Tracking Analyzer
Merge pull request #3 from aozora0000/scrutinizer-patch-1

Scrutinizer Auto-Fixes