Code style: linting whitespace at the end of the file. #8918

• Version: v6.3.0
• Platform: 16.0.0 Darwin Kernel Version 16.0.0: Mon Aug 29 17:56:20 PDT 2016; root:xnu-3789.1.32~3/RELEASE_X86_64 x86_64
• Subsystem: build

Rules are not configured to track for whitespace lines at the end of the file.
Probably it's better to add this rule for checking? I have faced this problem during the review of my PR. And it's definitely not cool to spend time tracking things that can be tracked with tools 🔨