How to make sudo exit on sudoers syntax errors in version 1.9.5 or later?

Issue

• sudo version 1.8.x exits with an error when it encounters a syntax error while parsing the sudoers file.
• In contrast, sudo version 1.9.5 and later prints a warning but continues to operate by ignoring the line with the syntax error.

• The goal is to configure sudo 1.9.5 and later to exit on a sudoers syntax error, which mimics the stricter behavior of version 1.8.x.

  ### sudo-1.8.29-7.el8
  # sudo -l
  sudo: unable to stat /etc/sudoers.d/801_myrule: No such file or directory
  sudo: parse error in /etc/sudoers near line 119
  sudo: no valid sudoers sources found, quitting
  sudo: unable to initialize policy plugin
  (exit with error)
  
  ### sudo-1.9.5p2-1.el8_9
  # sudo -l
  sudo: unable to stat /etc/sudoers.d/801_myrule: No such file or directory
  (shows results)