Scrutinizer Auto-Fixes

@Metabor requested this pull request.

This patch was automatically generated as part of the following inspection:
https://scrutinizer-ci.com/g/Metabor/Statemachine/inspections/4670b6b3-9613-4516-a23c-673e4dd295a8

Enabled analysis tools:
 - PHP Analyzer
 - PHP Mess Detector
 - PHP Code Sniffer
 - PHP CS Fixer
 - Security Advisory Checker
 - PHP Code Coverage
 - PHP Copy/Paste Detector
 - PHP Lines Of Code
 - PHP PDepend
 - External Code Coverage
 - PHP Change Tracking Analyzer