Replace `std::fmt:FormatterFn` with `std::fmt::from_fn`#129017

Merged

bors merged 1 commit intorust-lang:masterfrom its-the-shrimp:core_fmt_from_fn

Aug 13, 2024

+16-7

Commits on Aug 12, 2024

std::fmt::FormatterFn -> std::fmt::FromFn
its-the-shrimp
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