[Issue 15803] std.file should support sub-second file time precision on POSIX

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=15803

--- Comment #3 from Vladimir Panteleev <thecybershadow at gmail.com> ---
(In reply to Vladimir Panteleev from comment #1)
> Setting timestamps is already done with full resolution (toTimeVal + utimes).

Actually, utimes does not offer nanosecond precision. Instead, utimensat should
be used when available.

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