https://bugs.winehq.org/show_bug.cgi?id=55710
--- Comment #35 from Zeb Figura z.figura12@gmail.com --- It looks like that's coming from a pre-commit hook. I can't really find the source of that particular hook from an Internet search; it's clearly not stock (I don't have it), but I don't know who originally wrote it.
(In reply to Dmitry Timoshkov from comment #34)
Could you please fix this patch so it applies cleanly?
I'll fix it if I get time, but I'd really recommend you find a way to avoid depending on no whitespace errors in wine-staging patches. As it is, wine-staging can hardly be more than a repository for patches to live so that they don't get lost. Any actual upkeep we have to do is just an extra burden, that prevents us from getting time to ever upstream anything.