Issue #1646580 follow-up by beejeebus: Capitalization fixes.

core/lib/Drupal/Core/EventSubscriber/ConfigGlobalOverrideSubscriber.php

 <?php
 /**
  * @file
- * Definition of Drupal\Core\EventSubscriber\ConfigGlobalOverridesubscriber.
+ * Definition of Drupal\Core\EventSubscriber\ConfigGlobalOverrideSubscriber.
  */
 
 namespace Drupal\Core\EventSubscriber;
@@ -13,7 +13,7 @@
 /**
  * Override configuration values with values in global $conf variable.
  */
-class ConfigGlobalOverridesubscriber implements EventSubscriberInterface {
+class ConfigGlobalOverrideSubscriber implements EventSubscriberInterface {
   /**
    * Override configuration values with global $conf.
    *

core/modules/locale/lib/Drupal/locale/LocaleConfigSubscriber.php

 <?php
 /**
  * @file
- * Definition of Drupal\locale\LocaleConfigsubscriber.
+ * Definition of Drupal\locale\LocaleConfigSubscriber.
  */
 
 namespace Drupal\locale;
@@ -17,7 +17,7 @@
  *
  * $config is always a DrupalConfig object.
  */
-class LocaleConfigsubscriber implements EventSubscriberInterface {
+class LocaleConfigSubscriber implements EventSubscriberInterface {
   /**
    * Override configuration values with localized data.
    *