Vladislav Shchapov c240d98ffd Optimize tm formatting (Non C-locales and %Z) (#2617) ...

* Move fmt::detail::formatbuf to format.h

* Replace std::basic_ostringstream to std::basic_ostream with custom formatbuf

* Use tm.tm_zone

2021-12-04 11:02:31 -08:00

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fmt

Optimize tm formatting (Non C-locales and %Z) (#2617)

2021-12-04 11:02:31 -08:00