Fix PHP 7.2 compatibility

tests/src/Kernel/AccessTest.php

@@ -272,7 +272,7 @@ class AccessTest extends KernelTestBase {
     // -- Privileged user with access check.
     $this->setUpCurrentUser(
       ['name' => 'User 2'],
-      ['access content', 'create article content'],
+      ['access content', 'create article content']
     );
 
     $build = $this->twigExtension->drupalEntityForm('node', NULL, 'default', $node_values);