Merge pull request #3988 from daum/authhelper-ask-and-validate-error-3987

AuthHelper Exception Fix on Store Credentials

src/Composer/Util/AuthHelper.php

@@ -45,7 +45,7 @@ class AuthHelper
                     }
                     throw new \RuntimeException('Please answer (y)es or (n)o');
                 },
-                false,
+                null,
                 'y'
             );