Issue #3138793 by sja112, mohrerao: Fix "configuration" relevant typos in core

core/modules/system/tests/src/Kernel/Mail/MailTest.php

@@ -116,7 +116,7 @@ public function testCancelMessage() {
   public function testFromAndReplyToHeader() {
     $language = \Drupal::languageManager()->getCurrentLanguage();
 
-    // Set required site configuruation.
+    // Set required site configuration.
     $this->config('system.site')
       ->set('mail', 'mailtest@example.com')
       ->set('name', 'Drupal')