Scrutinizer Auto-Fixes

This patch was automatically generated as part of the following inspection:
https://scrutinizer-ci.com/g/felixgirault/parkour/inspections/f18e25a0-578c-40c4-98de-7a4ef26a7222

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

Doc