Remove trailing comma in parameter list.

src/Form/ConfigImportFormTrait.php

@@ -45,7 +45,7 @@ trait ConfigImportFormTrait {
    */
   public function __construct(
     StorageInterface $activeStorage,
-    ConfigFeaturesManager $configSplitManager,
+    ConfigFeaturesManager $configSplitManager
   ) {
     $this->activeStorage = $activeStorage;
     $this->manager = $configSplitManager;