Code updates

Author: javiereguiluz

Console/Descriptor/JsonDescriptor.php

@@ -323,7 +323,7 @@ private function getContainerAliasData(Alias $alias): array
     private function getEventDispatcherListenersData(EventDispatcherInterface $eventDispatcher, array $options): array
     {
         $data = [];
-        $event = \array_key_exists('event', $options) ? $options['event'] : null;
+        $event = $options['event'] ?? null;
 
         if (null !== $event) {
             foreach ($eventDispatcher->getListeners($event) as $listener) {

Console/Descriptor/XmlDescriptor.php

@@ -501,7 +501,7 @@ private function getContainerParameterDocument(mixed $parameter, ?array $depreca
 
     private function getEventDispatcherListenersDocument(EventDispatcherInterface $eventDispatcher, array $options): \DOMDocument
     {
-        $event = \array_key_exists('event', $options) ? $options['event'] : null;
+        $event = $options['event'] ?? null;
         $dom = new \DOMDocument('1.0', 'UTF-8');
         $dom->appendChild($eventDispatcherXML = $dom->createElement('event-dispatcher'));