diff --git a/core/modules/update/lib/Drupal/update/Controller/UpdateFetchController.php b/core/modules/update/lib/Drupal/update/Controller/UpdateFetchController.php
index e6e4655..765b311 100644
--- a/core/modules/update/lib/Drupal/update/Controller/UpdateFetchController.php
+++ b/core/modules/update/lib/Drupal/update/Controller/UpdateFetchController.php
@@ -9,7 +9,7 @@
 
 namespace Drupal\update\Controller;
 
-use Drupal\Core\ControllerInterface;
+use Drupal\Core\Controller\ControllerInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
@@ -18,12 +18,6 @@
 class UpdateFetchController implements ControllerInterface {
 
   /**
-   * Constructs update status data.
-   */
-  public function __construct() {
-  }
-
-  /**
    * {@inheritdoc}
    */
   public static function create(ContainerInterface $container) {
diff --git a/core/modules/update/lib/Drupal/update/UpdateFetchManager.php b/core/modules/update/lib/Drupal/update/UpdateFetchManager.php
index 4e758ae..324b71b 100644
--- a/core/modules/update/lib/Drupal/update/UpdateFetchManager.php
+++ b/core/modules/update/lib/Drupal/update/UpdateFetchManager.php
@@ -119,10 +119,12 @@ public function processFetchTask($project) {
 
     $frequency = $update_config->get('check.interval_days');
     $available['last_fetch'] = REQUEST_TIME + $request_time_difference;
-    \Drupal::keyValueExpirable('update_available_releases')->setWithExpire($project_name, $available, $request_time_difference + (60 * 60 * 24 * $frequency));
+    \Drupal::keyValueExpirable('update_available_releases')
+      ->setWithExpire($project_name, $available, $request_time_difference + (60 * 60 * 24 * $frequency));
 
     // Stash the $fail data back in the DB for the next 5 minutes.
-    \Drupal::keyValueExpirable('update')->setWithExpire('fetch_failures', $fail, $request_time_difference + (60 * 5));
+    \Drupal::keyValueExpirable('update')
+      ->setWithExpire('fetch_failures', $fail, $request_time_difference + (60 * 5));
 
     // Whether this worked or not, we did just (try to) check for updates.
     state()->set('update.last_check', REQUEST_TIME + $request_time_difference);
@@ -146,7 +148,7 @@ public function processFetchTask($project) {
    * @param $site_key
    *   (optional) The anonymous site key hash. Defaults to an empty string.
    *
-   * @return
+   * @return string
    *   The URL for fetching information about updates to the specified project.
    *
    * @see update_fetch_data(updateFetchData
@@ -158,7 +160,7 @@ public function buildFetchUrl($project, $site_key = '') {
     $url = $this->getFetchUrlBase($project);
     $url .= '/' . $name . '/' . DRUPAL_CORE_COMPATIBILITY;
 
-    // Only append usage infomation if we have a site key and the project is
+    // Only append usage information if we have a site key and the project is
     // enabled. We do not want to record usage statistics for disabled projects.
     if (!empty($site_key) && (strpos($project['project_type'], 'disabled') === FALSE)) {
       // Append the site key.
@@ -186,7 +188,7 @@ public function buildFetchUrl($project, $site_key = '') {
    * @param $project
    *   The array of project information from updateGetProjects().
    *
-   * @return
+   * @return string
    *   The base of the URL used for fetching available update data. This does
    *   not include the path elements to specify a particular project, version,
    *   site_key, etc.
@@ -212,7 +214,7 @@ public function getFetchUrlBase($project) {
    * @param $raw_xml
    *   A raw XML string of available release data for a given project.
    *
-   * @return
+   * @return array|NULL
    *   Array of parsed data about releases for a given project, or NULL if there
    *   was an error parsing the string.
    */
diff --git a/core/modules/update/update.routing.yml b/core/modules/update/update.routing.yml
index 76bd488..1c97981 100644
--- a/core/modules/update/update.routing.yml
+++ b/core/modules/update/update.routing.yml
@@ -17,4 +17,4 @@ update_check_manual:
   defaults:
     _content: '\Drupal\update\Controller\UpdateFetchController::updateManualStatus'
   requirements:
-    _permission: 'administer site configuration'
\ No newline at end of file
+    _permission: 'administer site configuration'
diff --git a/core/modules/update/update.services.yml b/core/modules/update/update.services.yml
index 502986f..a60f412 100644
--- a/core/modules/update/update.services.yml
+++ b/core/modules/update/update.services.yml
@@ -2,4 +2,4 @@ services:
   update.fetch:
     class: Drupal\update\UpdateFetchManager
   update.compare:
-    class: Drupal\update\UpdateCompareManager
\ No newline at end of file
+    class: Drupal\update\UpdateCompareManager