Fixed the YAML example in the scope cookboob article

stof · stof · commit eb93d2652c43 · 2013-06-19T15:50:00.000+03:00
The argument was missing the strict=false attribute to be consistent
with the XML and PHP examples, and it is needed when using a
synchronized service from a narrower scope.
diff --git a/cookbook/service_container/scopes.rst b/cookbook/service_container/scopes.rst
@@ -149,7 +149,7 @@ your code. This should also be taken into account when declaring your service:
             greeting_card_manager:
                 class: Acme\HelloBundle\Mail\GreetingCardManager
                 calls:
-                    - [setRequest, ['@?request']]
+                    - [setRequest, ['@?request=']]
 
     .. code-block:: xml
 
