feat: use go errors

[shipengqi]

No description provided.

[codecov-commenter]

Codecov Report

Merging #17 (795d526) into main (46eb1ef) will increase coverage by 0.29%.
The diff coverage is n/a.

❗ Your organization is not using the GitHub App Integration. As a result you may experience degraded service beginning May 15th. Please install the Github App Integration for your organization. Read more.

@@            Coverage Diff             @@
##             main      #17      +/-   ##
==========================================
+ Coverage   59.95%   60.24%   +0.29%     
==========================================
  Files           4        4              
  Lines         412      410       -2     
==========================================
  Hits          247      247              
+ Misses        160      159       -1     
+ Partials        5        4       -1     

Flag	Coverage Δ
unittests	60.24% <ø> (+0.29%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
log.go	61.11% <ø> (ø)
logger.go	62.89% <ø> (+0.56%)	⬆️
options.go	36.25% <ø> (ø)

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more

[github-advanced-security]

This pull request sets up GitHub code scanning for this repository. Once the scans have completed and the checks have passed, the analysis results for this pull request branch will appear on this overview. Once you merge this pull request, the 'Security' tab will show more code scanning analysis results (for example, for the default branch). Depending on your configuration and choice of analysis tool, future pull requests will be annotated with code scanning analysis results. For more information about GitHub code scanning, check out the documentation.