* hotfix: return error instead of log at `FromMapAndOption`
* chore: show error message
* hotfix: use correct function
* hotix: use `t.Helper()` and fix `t *testing.T order
* hotfix: wrapt the error of `FromMapAndOption`
* hotfix: meaningful message for an error
* hotfix: summarize in one line
* hotfix: fix the abandoned error and show meaningful message
* hotfix: start with helper function
* Keep TODO comment
* Move api/filesys to kyaml/filesys
* Add deprecated version of api/filesys with aliases to new code
* Use new kyaml/filesys package and update dependencies
* Migrate to kyaml/filesys and update dependencies
* Skip tests that break on Windows
