[master] 1adddf7 Add a section about VCL token parsing in Upgrading to 5.2, currently TBD.

[Geoff Simmons]

commit 1adddf739814f11de49916879e5cde4bd0945e22
Author: Geoff Simmons <geoff at uplex.de>
Date:   Wed Sep 13 16:48:32 2017 +0200

    Add a section about VCL token parsing in Upgrading to 5.2, currently TBD.

diff --git a/doc/sphinx/whats-new/upgrading-5.2.rst b/doc/sphinx/whats-new/upgrading-5.2.rst
index 8d837f9..ad0b3d7 100644
--- a/doc/sphinx/whats-new/upgrading-5.2.rst
+++ b/doc/sphinx/whats-new/upgrading-5.2.rst
@@ -40,6 +40,11 @@ XXX: headline changes ...
 
 *XXX: the most important changes or additions first*
 
+Stricter checking of VCL symbol names
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+*XXX: TBD by DB*
+
 ``req.hash`` and ``bereq.hash``
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~