Issue #3230507: Create build tests for case where site is using core recommended Composer project

src/Updater.php

@@ -212,7 +212,7 @@ class Updater {
       return 'drupal/core';
     }
     elseif (isset($composer['require']['drupal/core-recommended'])) {
-        return 'drupal/core-recommended';
+      return 'drupal/core-recommended';
     }
     throw new \LogicException("Could not determine the Drupal core package in the project-level composer.json.");
   }