[5.2] 104a209 Document the "vmod_so_keep" effect of varnishtest -L/-l in 5.2.

[PÃ¥l Hermunn Johansen]

commit 104a20914c8880f4342fadc52d117d8beffaf376
Author: Geoff Simmons <geoff at uplex.de>
Date:   Wed Sep 13 14:16:48 2017 +0200

    Document the "vmod_so_keep" effect of varnishtest -L/-l in 5.2.

diff --git a/doc/sphinx/whats-new/upgrading-5.2.rst b/doc/sphinx/whats-new/upgrading-5.2.rst
index 6e2a489..d9327c5 100644
--- a/doc/sphinx/whats-new/upgrading-5.2.rst
+++ b/doc/sphinx/whats-new/upgrading-5.2.rst
@@ -114,9 +114,12 @@ Other changes
 
 * ``varnishtest(1)`` and ``vtc(7)``:
 
-  * *XXX: changes in test code*
+  * *XXX: changes in test scripting or test code, for example due to VMOD vtc?*
 
-  * *XXX: for example due to VMOD vtc*
+  * When varnishtest is invoked with ``-L`` or ``-l``, Varnish
+    instances started by a test do not clean up their copies of VMOD
+    shared objects when they stop. See the note about ``vmod_so_keep``
+    below.
 
   * *XXX: ...*