Print this error to stderr instead of stdout.

[yilei]

Type of Changes

	Type
✓	🐛 Bug fix
	✨ New feature
	🔨 Refactoring
	📜 Docs

Description

Print this error to stderr instead of stdout, otherwise it produces invalid formatted outputs.

This is similar to #6597, please let me know if you want me to file a separate issue.

[codecov]

Codecov Report

Merging #8142 (8362c57) into main (c668dca) will not change coverage.
The diff coverage is n/a.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #8142   +/-   ##
=======================================
  Coverage   95.53%   95.53%           
=======================================
  Files         177      177           
  Lines       18622    18622           
=======================================
  Hits        17791    17791           
  Misses        831      831           

Impacted Files	Coverage Δ
pylint/lint/utils.py	96.00% <ø> (ø)

[Pierre-Sassoulas]

Thanks ! How did you encounter the issue ? (I.e. there's a crash in the wild ?)

[yilei]

Same as #6597. We have our internal tool that's built on top of pylint, and it uses the stdout for structured lint error outputs (equivalent of --output-format=json).