Scrutinizer Auto-Fixes

This patch was automatically generated as part of the following inspection:
https://scrutinizer-ci.com/g/nilportugues/sql-query-builder/inspections/bdacdbff-5860-44c2-b4d6-f2c7c81743d9

Enabled analysis tools:
 - PHP Analyzer
 - PHP Code Sniffer
 - PHP CS Fixer
 - PHP PDepend
 - PHP Similarity Analyzer
 - PHP Change Tracking Analyzer
Merge pull request #6 from nilportugues/scrutinizer-patch-1

Scrutinizer Auto-Fixes