fixed typo in the GroupSequenceProviderInterface path.

dantormey · weaverryan · commit 303daff94f4f · 2013-08-25T08:43:37.000-04:00
diff --git a/book/validation.rst b/book/validation.rst
@@ -1074,7 +1074,7 @@ then your code might look like this::
     namespace Acme\DemoBundle\Entity;
 
     // ...
-    use Symfony\Component\Validation\GroupSequenceProviderInterface;
+    use Symfony\Component\Validator\GroupSequenceProviderInterface;
 
     /**
      * @Assert\GroupSequenceProvider
