code: function printConfiguredUnavailable() {
    if (!argv.invalid) {
      return;
    }
  
    const configuredUnavailable = _.difference(rules.userRulesNames, rules.stylelintAll);
  
    if (!configuredUnavailable.length) {
      return;
    }
  
    const heading = chalk.red.underline('INVALID: Configured rules that are no longer available:');
    const rulesToPrint = _.map(configuredUnavailable, rule => {
      return {
        rule: chalk.redBright(rule)
      };
    });
  
    printColumns(heading, rulesToPrint);
  }
docs: Print configured rules that are no longer available