Feedback on the 2024 edition import sorting page

[msrd0]

I just saw the new blog post and followed the link at the bottom and ended up on this page: https://doc.rust-lang.org/nightly/edition-guide/rust-2024/rustfmt-version-sorting.html. I have some feedback on the page.

The page mentions that the sorting now has better sorting for types with numbers in their name which I appreciate. Shown in the diff but not mentioned anywhere in the text is that lower-case names suddenly move from the front to the back, as seen by the std::io::stdout import in that example. I believe this change should be more clearly mentioned in the text as it can be quite a surprise to see that suddenly all your imports get shuffled around. It is also a change that creates a lot of unnecessary diff and one I'd like to not have (while still keeping all the other great changes in the new style edition), so if there is a flag to disable this behaviour it would be cool if that was documented as well.

[traviscross]

cc @rust-lang/style @rust-lang/rustfmt

[ehuss]

From what I can tell, the old behavior was snake_case < CamelCase < UPPER_SNAKE_CASE. It might be nice for the chapter to describe that in more detail, as I was also confused about a conflation of multiple changes here (it's not just version sorting, but it is version sorting + Unicode lexicographic).