Merge branch '6.4' into 7.1

* 6.4:
  style: Typo in content title
  fix dump destination value in PHP config

Author: xabbuh

reference/configuration/debug.rst

@@ -95,7 +95,7 @@ Typically, you would set this to ``php://stderr``:
 
         return static function (ContainerConfigurator $container): void {
             $container->extension('debug', [
-                'dump_destination' => 'tcp://%env(VAR_DUMPER_SERVER)%',
+                'dump_destination' => 'php://stderr',
             ]);
         };
 

testing/database.rst

@@ -83,7 +83,7 @@ the employee which gets returned by the ``Repository``, which itself gets
 returned by the ``EntityManager``. This way, no real class is involved in
 testing.
 
-Functional Testing of A Doctrine Repository
+Functional Testing of a Doctrine Repository
 -------------------------------------------
 
 In :ref:`functional tests <functional-tests>` you'll make queries to the