diff --git a/core/modules/config_translation/src/Tests/ConfigTranslationUiTest.php b/core/modules/config_translation/src/Tests/ConfigTranslationUiTest.php
index b14b69b..1505d57 100644
--- a/core/modules/config_translation/src/Tests/ConfigTranslationUiTest.php
+++ b/core/modules/config_translation/src/Tests/ConfigTranslationUiTest.php
@@ -620,7 +620,8 @@ public function testPluralConfigStringsSourceElements() {
     );
 
     foreach ($languages as $langcode => $data) {
-      // Import a .po file to add a new language with a given number of plural forms.
+      // Import a .po file to add a new language with a given number of plural
+      // forms.
       $name = tempnam('temporary://', $langcode . '_') . '.po';
       file_put_contents($name, $this->getPoFile($data['plurals']));
       $this->drupalPostForm('admin/config/regional/translate/import', array(
@@ -773,7 +774,7 @@ public function testLocaleDBStorage() {
     $translation = $this->getTranslation('user.settings', 'anonymous', 'fr');
     $this->assertEqual('Anonyme', $translation->getString());
 
-    // Revert custom translations to base translation.
+    // Revert custom translations to base translations.
     $edit = array(
       'translation[config_names][user.settings][anonymous]' => 'Anonymous',
     );
diff --git a/core/modules/system/system.install b/core/modules/system/system.install
index da0e664..3a2ab6d 100644
--- a/core/modules/system/system.install
+++ b/core/modules/system/system.install
@@ -1868,7 +1868,7 @@ function system_update_8014() {
   }
 
 /*
- * Remove meaningless configuration from system.rss
+ * Remove meaningless configuration from system.rss.
  */
 function system_update_8015() {
   \Drupal::configFactory()->getEditable('system.rss')