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I've gotten in the habit of adding trailing whitespace when I comment out code or do any printf debugging. It's still quick, but then git yells at me if I try and commit it.

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That's an interesting way of dealing with it - I have my text editor strip trailing whitespace and ensure there's a newline at the end of the file on every save, so it wouldn't work for me.

That's okay though. I visually review the diff before I commit (almost) every time.

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