[Bug libstdc++/112564] std::format(std::thread::id) is incorrectly left-aligned

[redi at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112564

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Alfred Agrell from comment #0)
> but libstdc++ is left-aligning.

Yes, that's a bug.

> I am not sure how duration should be aligned by default but either libstdc++
> or libc++ are buggy here.

chrono::duration is not an arithmetic type, so I think it should default to
left-aligned.