Issue #2623790 by roderik, priya.chat, stefan.r: Update...

Issue #2623790 by roderik, priya.chat, stefan.r: Update SessionManager::migrateStoredSession() method comment

(cherry picked from commit 820b2f53)

core/lib/Drupal/Core/Session/SessionManager.php

@@ -331,8 +331,7 @@ protected function getSessionDataMask() {
    * Migrates the current session to a new session id.
    *
    * @param string $old_session_id
-   *   The old session id. The new session id is $this->getId() unless
-   *   $new_insecure_session_id is not empty.
+   *   The old session ID. The new session ID is $this->getId().
    */
   protected function migrateStoredSession($old_session_id) {
     $fields = array('sid' => Crypt::hashBase64($this->getId()));