Scrutinizer Auto-Fixes

@stojg requested this pull request.

This patch was automatically generated as part of the following inspection:
https://scrutinizer-ci.com/g/stojg/silverstripe-timeline/inspections/fb5febc7-14fd-4ded-b8fa-85c47263ebde

Enabled analysis tools:
 - PHP Analyzer
 - PHP Copy/Paste Detector
 - PHP PDepend