Besides, I notice that lib/lint-md.js is using different EOF, should they be unified into one format? If not, developer can't directly use VSCode or WebStorm modify this file, because they will unify EOF while saving. Vim will not change.

lint-md.js is generated so should not be edited. Something should probably be done to the process so that it ends up with the same line and file endings as everything else. The generation routine can be found in the Makefile's lint-md-rollup task. The key bit there is the build-node task in the package.json file in tools/node-lint-md-cli-rollup.

Less sure about punycode.js. It used to be from an upstream source but I think we've modified it and it's no longer maintained upstream. Someone want to confirm that?

For lint-md.js, you can grep through node_modules dependencies to see where to upstream the fixes. For example, the regxep typo is in the debug module. The repo is here and the typo in that repo is here.

thanks @Trott 's review, I update this branch and push a new branch ( #34233 ) that can add a banner to lint-md.js to hint others don't change this file directly.

Need to be closed since it's not nodejs issue