[master] a1ac5e7 Document the addition of named listen addresses to 5.2.

[Geoff Simmons]

commit a1ac5e7e4e014b12b11cde584a55abee0d5f8ec1
Author: Geoff Simmons <geoff at uplex.de>
Date:   Wed Sep 13 18:01:16 2017 +0200

    Document the addition of named listen addresses to 5.2.

diff --git a/doc/sphinx/whats-new/upgrading-5.2.rst b/doc/sphinx/whats-new/upgrading-5.2.rst
index ee281eb..2166340 100644
--- a/doc/sphinx/whats-new/upgrading-5.2.rst
+++ b/doc/sphinx/whats-new/upgrading-5.2.rst
@@ -149,6 +149,14 @@ Other changes
 
 * ``varnishd(1)``:
 
+  * Listen addresses specified with ``-a`` may now be given a name on
+    the command line, for example ``-a admin=127.0.0.1:88`` to
+    identify an address used for administrative requests but not
+    regular client traffic. If you don't specify a name, then ``a0``,
+    ``a1`` and so forth are used. The endpoint names are used in the
+    log output, for example with the ``SessOpen`` tag. See
+    :ref:`varnishd(1)`.
+
   * The default value of ``server.identity`` when the ``-i`` option is
     not set has been changed as noted above.