PHP/RestrictedPHPFunctions: update code comment for namespaced function calls tests

Author: rodrigoprimo

WordPress/Tests/PHP/RestrictedPHPFunctionsUnitTest.inc

@@ -5,7 +5,7 @@ add_action( 'widgets_init', create_function( '', // Error.
 ) );
 
 /*
- * Safeguard support for PHP 8.0+ tokenization of namespaced "names".
+ * Safeguard correct handling of all types of namespaced function calls
  */
 \create_function('', 'return;');
 MyNamespace\create_function('', 'return;');