[book] reverted small changeset in the controllers chapter.

Hugo Hamon · Hugo Hamon · commit 2121b39c5a47 · 2011-06-07T20:50:08.000+02:00
diff --git a/book/controller.rst b/book/controller.rst
@@ -368,7 +368,7 @@ forwarding, rendering templates and accessing core services, are very easy
 to manage in Symfony2.
 
 .. index::
-   single: Controller; Request
+   single: Controller; Redirecting
 
 Redirecting
 ~~~~~~~~~~~
