[6.0] 52f14431e Add #3437 to the changelog

[Martin Blix Grydeland]

commit 52f14431e5c5e75c18125166125ed0ba2420d2c0
Author: Martin Blix Grydeland <martin at varnish-software.com>
Date:   Tue Nov 9 17:29:59 2021 +0100

    Add #3437 to the changelog

diff --git a/doc/changes.rst b/doc/changes.rst
index fa6cf41c9..21d3223a1 100644
--- a/doc/changes.rst
+++ b/doc/changes.rst
@@ -32,7 +32,11 @@ Varnish Cache 6.0.9 (unreleased)
 
 * Increase the default stack size to 64k. (3617_)
 
+* Correctly reset the received SIGHUP flag in libvarnishapi when no
+  handling function for this signal is registered. (3437_)
+
 .. _3617: https://github.com/varnishcache/varnish-cache/pull/3617
+.. _3437: https://github.com/varnishcache/varnish-cache/issues/3437'
 
 ================================
 Varnish Cache 6.0.8 (2021-07-13)