Scrutinizer Auto-Fixes

This patch was automatically generated as part of the following inspection:
https://scrutinizer-ci.com/g/Spomky-Labs/oauth2-server-token-endpoint/inspections/cce650a9-c9dc-44c5-a227-c0b3efb81482

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Merge pull request #1 from Spomky-Labs/scrutinizer-patch-1

Scrutinizer Auto-Fixes