diff --git a/core/lib/Drupal/Core/Config/ConfigImportValidateEventSubscriberBase.php b/core/lib/Drupal/Core/Config/ConfigImportValidateEventSubscriberBase.php
index 61cf26a..e85ee4e 100644
--- a/core/lib/Drupal/Core/Config/ConfigImportValidateEventSubscriberBase.php
+++ b/core/lib/Drupal/Core/Config/ConfigImportValidateEventSubscriberBase.php
@@ -11,8 +11,7 @@
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 
 /**
- * ConfigImportValidateEventSubscriberBase makes creating config sync validators
- * easy.
+ * ConfigImportValidateEventSubscriberBase provides easy config sync validators.
  */
 abstract class ConfigImportValidateEventSubscriberBase implements EventSubscriberInterface {
 
diff --git a/core/modules/config/lib/Drupal/config/Form/ConfigSync.php b/core/modules/config/lib/Drupal/config/Form/ConfigSync.php
index 3a4deaa..626528e 100644
--- a/core/modules/config/lib/Drupal/config/Form/ConfigSync.php
+++ b/core/modules/config/lib/Drupal/config/Form/ConfigSync.php
@@ -276,7 +276,7 @@ public function submitForm(array &$form, array &$form_state) {
       }
       catch (ConfigImporterException $e) {
         // There are validation errors.
-        drupal_set_message($this->t('The configuration synchronsaiotn failed validaton for the reason(s) listed below.'));
+        drupal_set_message($this->t('The configuration synchronisation failed validation.'));
         foreach ($config_importer->getErrors() as $message) {
           drupal_set_message($message, 'error');
         }
diff --git a/core/modules/system/lib/Drupal/system/SystemConfigSubscriber.php b/core/modules/system/lib/Drupal/system/SystemConfigSubscriber.php
index 44d7de8..3445fe8 100644
--- a/core/modules/system/lib/Drupal/system/SystemConfigSubscriber.php
+++ b/core/modules/system/lib/Drupal/system/SystemConfigSubscriber.php
@@ -20,8 +20,8 @@ class SystemConfigSubscriber extends ConfigImportValidateEventSubscriberBase {
    * Checks that the configuration synchronisation is valid.
    *
    * This event listener implements two checks:
-   * - prevents deleting all configuration.
-   * - checks that the system.site:uuid's in the source and target match.
+   *   - prevents deleting all configuration.
+   *   - checks that the system.site:uuid's in the source and target match.
    *
    * @param ConfigImporterEvent $event
    *   The config import event.