comparison vendor/symfony/console/Question/ConfirmationQuestion.php @ 17:129ea1e6d783

Update, including to Drupal core 8.6.10

     {
         $default = $this->getDefault();
         $regex = $this->trueAnswerRegex;
 
         return function ($answer) use ($default, $regex) {
-            if (is_bool($answer)) {
+            if (\is_bool($answer)) {
                 return $answer;
             }
 
             $answerIsTrue = (bool) preg_match($regex, $answer);
             if (false === $default) {
                 return $answer && $answerIsTrue;
             }
 
-            return !$answer || $answerIsTrue;
+            return '' === $answer || $answerIsTrue;
         };
     }
 }