[4.1] 2cf3fd2 backend threads fail tovcl_backend_error

[Lasse Karstensen]

commit 2cf3fd21d3f379871d93e8ea29ce26b842b557ac
Author: Per Buer <perbu at varnish-software.com>
Date:   Tue Oct 20 13:17:56 2015 +0200

    backend threads fail tovcl_backend_error

diff --git a/doc/sphinx/users-guide/vcl-built-in-subs.rst b/doc/sphinx/users-guide/vcl-built-in-subs.rst
index a1eba28..12d3377 100644
--- a/doc/sphinx/users-guide/vcl-built-in-subs.rst
+++ b/doc/sphinx/users-guide/vcl-built-in-subs.rst
@@ -268,8 +268,8 @@ The `vcl_backend_fetch` subroutine may terminate with calling
 
   ``abandon``
     Abandon the backend request. Unless the backend request was a
-    background fetch, control is passed to :ref:`vcl_synth` on the
-    client side with ``resp.status`` preset to 503.
+    background fetch, control is passed to :ref:`vcl_backend_error`
+    with ``resp.status`` preset to 503.
 
 .. _vcl_backend_response: