Please let customize level mapping for tracing-journald

[hongquan]

Feature Request

Crates

tracing-journald

Motivation

Currently, tracing-journald map tracing log level to Journald priority like this:

ERROR => Error (3)
WARN => Warning (4)
INFO => Notice (5)
DEBUG => Informational (6)
TRACE => Debug (7)

However, because "Notice" produces bold text, I want to remap like this:

INFO => Informational (6)
DEBUG / TRACE => Debug (7)

Proposal

Alternatives

[glts]

See pull request #2347.