diff --git a/core/includes/bootstrap.inc b/core/includes/bootstrap.inc
index c68cf88..f4d3bc2 100644
--- a/core/includes/bootstrap.inc
+++ b/core/includes/bootstrap.inc
@@ -502,7 +502,7 @@ function drupal_settings_initialize() {
     require DRUPAL_ROOT . '/' . $conf_path . '/settings.php';
   }
   // Initialize Database.
-  Database::setConnectionInfo($databases);
+  Database::setMultipleConnectionInfo($databases);
   // Initialize Settings.
   new Settings($settings);
 }
diff --git a/core/lib/Drupal/Core/Database/Database.php b/core/lib/Drupal/Core/Database/Database.php
index c4e620b..4a6fb06 100644
--- a/core/lib/Drupal/Core/Database/Database.php
+++ b/core/lib/Drupal/Core/Database/Database.php
@@ -274,21 +274,22 @@
   }
 
   /**
-   * Gets information on all the database connections.
+   * Gets connection information for all available databases.
    *
-   * @return array|null
+   * @return array
    */
   final public static function getAllConnectionInfo() {
     return self::$databaseInfo;
   }
 
   /**
-   * Sets database connection information.
+   * Sets connection information for multiple databases.
    *
    * @param array $databases
-   *   A multi-dimensional array specifying database connection parameters.
+   *   A multi-dimensional array specifying database connection parameters, as
+   *   defined in settings.php.
    */
-  final public static function setConnectionInfo(array $databases) {
+  final public static function setMultipleConnectionInfo(array $databases) {
     foreach ($databases as $key => $targets) {
       foreach ($targets as $target => $info) {
         self::addConnectionInfo($key, $target, $info);