github.com/googgoog/go-ethereum@v1.9.7/log/README_ETHEREUM.md (about)

     1  This package is a fork of https://github.com/inconshreveable/log15, with some
     2  minor modifications required by the go-ethereum codebase:
     3  
     4   * Support for log level `trace`
     5   * Modified behavior to exit on `critical` failure