slog-atomic 0.4.3

Atomic run-time controllable drain for slog-rs
Documentation
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# slog-atomic - Atomic run-time controllable drain for [slog-rs]

[slog-rs]: //github.com/slog-rs/slog

Using `slog-atomic` you can create a `slog::Drain` that can change behaviour
in a thread-safe way, in runtime. This is useful eg. for triggering different
logging levels from a signal handler.