Benny Halevy e6bcb1c8df utils: to_string: get rid of to_string(std::initializer_list) ...

It's unused.

Just in case, add a unit test case for using the fmt library to
format it (that includes fmt::to_string(std::initializer_list)).

Note that the existing to_string implementation
used square brackets to enclose the initializer_list
but the new, standardized form uses curly braces.

This doesn't break anything since to_string(initializer_list)
wasn't used.

Signed-off-by: Benny Halevy <bhalevy@scylladb.com>

2023-05-02 10:48:46 +03:00

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