1.9.3 óta működik ( https://www.sudo.ws/docs/upgrade/ ):
"Starting with version 1.9.3, sudo will attempt to recover from a syntax error in the sudoers file by discarding the portion of the line that contains the error until the end of the line. To restore the historic behavior of refusing to run when a syntax error is encountered, add error_recovery=false as a plugin option in sudo.conf for the “sudoers_audit” plugin, (or “sudoers_policy” if there is no “sudoers_audit” plugin configured)."
A 20.04-es Ubuntu 1.8.31-es verziót szállít - néhány sérülékenység javítását backportolva bele.