Scrutinizer Auto-Fixes

@DeepDiver1975 requested this pull request.

This patch was automatically generated as part of the following inspection:
https://scrutinizer-ci.com/g/owncloud/mail/inspections/44d1197f-4d11-450d-a7c4-b8272985f858

Enabled analysis tools:
 - PHP Analyzer
 - JSHint
 - PHP PDepend
 - External Code Coverage
 - PHP Similarity Analyzer
 - PHP Change Tracking Analyzer