logfmt/json keys for msg/lvl/t are hard-coded

[neilisaac]

Some logging services (ex. LogDNA) only parse specific key names to parse the log level and message. It would be nice if these were user configurable.

Proposed enhancement implemented in #145

[ChrisHines]

Have you considered writing a Handler that sets the KeyNames of each Record? I believe that this approach does not require any code changes in this package to achieve your goal.

[neilisaac]

Sounds like a good workaround, thanks @ChrisHines. Is this preferable over an interface change in the library?

[ChrisHines]

Yes, changing the interface would be a breaking change.