diff --git a/core/modules/node/src/Entity/Node.php b/core/modules/node/src/Entity/Node.php
index 6c75da7..adbf3c1 100644
--- a/core/modules/node/src/Entity/Node.php
+++ b/core/modules/node/src/Entity/Node.php
@@ -485,13 +485,15 @@ public static function baseFieldDefinitions(EntityTypeInterface $entity_type) {
   }
 
   /**
-   * Helper callback to pass into 'uid' base field definition.
+   * Default value callback for 'uid' base field definition.
    *
    * @see ::baseFieldDefinitions()
    *
    * @return array
+   *   An array of default values.
    */
   public static function getCurrentUserId() {
     return array(\Drupal::currentUser()->id());
   }
+
 }
diff --git a/core/modules/rdf/src/CommonDataConverter.php b/core/modules/rdf/src/CommonDataConverter.php
index c91f947..af95d37 100644
--- a/core/modules/rdf/src/CommonDataConverter.php
+++ b/core/modules/rdf/src/CommonDataConverter.php
@@ -20,7 +20,7 @@ class CommonDataConverter {
    * @return mixed
    *   Returns the data.
    */
-  static function rawValue($data) {
+  public static function rawValue($data) {
     return $data;
   }
 
@@ -33,7 +33,7 @@ static function rawValue($data) {
    * @return string
    *   Returns the ISO 8601 timestamp.
    */
-  static function dateIso8601Value($data) {
+  public static function dateIso8601Value($data) {
     return date_iso8601($data['value']);
   }
 
diff --git a/core/modules/user/src/Plugin/Field/FieldFormatter/AuthorFormatter.php b/core/modules/user/src/Plugin/Field/FieldFormatter/AuthorFormatter.php
index 43054a6..e30a0bf 100644
--- a/core/modules/user/src/Plugin/Field/FieldFormatter/AuthorFormatter.php
+++ b/core/modules/user/src/Plugin/Field/FieldFormatter/AuthorFormatter.php
@@ -48,7 +48,11 @@ public function viewElements(FieldItemListInterface $items) {
     return $elements;
   }
 
+  /**
+   * {@inheritdoc}
+   */
   public static function isApplicable(FieldDefinitionInterface $field_definition) {
     return $field_definition->getFieldStorageDefinition()->getSetting('target_type') == 'user';
   }
+
 }
diff --git a/core/themes/bartik/templates/node.html.twig b/core/themes/bartik/templates/node.html.twig
index 7ab0b5e..745b953 100644
--- a/core/themes/bartik/templates/node.html.twig
+++ b/core/themes/bartik/templates/node.html.twig
@@ -24,7 +24,7 @@
  *   view mode.
  * - metadata: Metadata for this node.
  * - date: Themed creation date field.
- * - author_name: Themed author date field.
+ * - author_name: Themed author name field.
  * - url: Direct URL of the current node.
  * - display_submitted: Whether submission information should be displayed.
  * - attributes: HTML attributes for the containing element.