[Issue 13568] Support compile-time format strings in std.format

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=13568

--- Comment #7 from github-bugzilla at puremagic.com ---
Commit pushed to master at https://github.com/dlang/phobos

https://github.com/dlang/phobos/commit/95b2b139e9438e8ff7383946be4aa0de3a85159a
Merge pull request #5296 from ntrel/ct-stdio-format

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