Merge branch '5.1' into 5.2

* 5.1:
  Add forgotten use
  Fix option double dashes
  [Validator] Fix namespace of UserPassword and UserPasswordValidator

Author: javiereguiluz

console/input.rst

@@ -249,7 +249,7 @@ optionally accepts a value, but it's a bit tricky. Consider this example::
         )
     ;
 
-This option can be used in 3 ways: ``greet --yell``, ``greet yell=louder``,
+This option can be used in 3 ways: ``greet --yell``, ``greet --yell=louder``,
 and ``greet``. However, it's hard to distinguish between passing the option
 without a value (``greet --yell``) and not passing the option (``greet``).
 

reference/constraints/UserPassword.rst

@@ -20,8 +20,8 @@ Applies to  :ref:`property or method <validation-property-target>`
 Options     - `groups`_
             - `message`_
             - `payload`_
-Class       :class:`Symfony\\Component\\Validator\\Constraints\\UserPassword`
-Validator   :class:`Symfony\\Component\\Validator\\Constraints\\UserPasswordValidator`
+Class       :class:`Symfony\\Component\\Security\\Core\\Validator\\Constraints\\UserPassword`
+Validator   :class:`Symfony\\Component\\Security\\Core\\Validator\\Constraints\\UserPasswordValidator`
 ==========  ===================================================================
 
 Basic Usage

security/access_denied_handler.rst

@@ -29,6 +29,7 @@ unauthenticated user tries to access a protected resource::
     use Symfony\Component\HttpFoundation\RedirectResponse;
     use Symfony\Component\HttpFoundation\Request;
     use Symfony\Component\HttpFoundation\Session\SessionInterface;
+    use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
     use Symfony\Component\Security\Core\Exception\AuthenticationException;
     use Symfony\Component\Security\Http\EntryPoint\AuthenticationEntryPointInterface;