Fix error_pages.rst setResponse()

Author: Florian-Merle

controller/error_pages.rst

@@ -319,7 +319,7 @@ error pages.
 
 .. note::
 
-    If your listener calls ``setThrowable()`` on the
+    If your listener calls ``setResponse()`` on the
     :class:`Symfony\\Component\\HttpKernel\\Event\\ExceptionEvent`
     event, propagation will be stopped and the response will be sent to
     the client.