Use full namespaces in docblocks.

src/Event/EventDispatcherTrait.php

@@ -15,7 +15,7 @@
 namespace Cake\Event;
 
 /**
- * Implements EventDispatcherInterface.
+ * Implements Cake\Event\EventDispatcherInterface.
  *
  */
 trait EventDispatcherTrait

src/Event/EventManagerTrait.php

@@ -17,7 +17,7 @@ namespace Cake\Event;
 /**
  * Provides the event manager interface features for usage in classes that require it.
  *
- * @deprecated 3.0.10 Use EventDispatcherTrait instead.
+ * @deprecated 3.0.10 Use Cake\Event\EventDispatcherTrait instead.
  */
 trait EventManagerTrait
 {