clap-logflag 0.2.0

This library can be used to add a `--log` flag to clap based command line applications that allows users to configure logging from the command line. It can log to stderr, files and syslog, powered by the fern logging backend.
Documentation
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Version 0.2.0
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* Significantly better error messages when the user tries to use `--log` with an invalid configuration.
* Replace the `chumsky` parser with a simple hand-rolled parser.
* Performance optimization: Precalculate and store logger formatter options instead of calculating them for every log message

Version 0.1.0
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* initial release