[libc-commits] [libc] [libc] adding linux SYS_fchmodat2 syscall. (PR #89819)

[Michael Jones via libc-commits]

https://github.com/michaelrj-google commented:

this patch overall looks fine, I'll approve once you mark it not a draft, but it would be good to add something in the commit message about why this is being added.

https://github.com/llvm/llvm-project/pull/89819