[Issue 19775] multiple argument string mixin doesn't expand tuples

[d-bugmail--- via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=19775

--- Comment #2 from Basile-z <b2.t...@gmx.com> ---
It looks good for a PR, you'll see if it works with the CI anyway.

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