Update changelog.

debian/changelog

@@ -49,6 +49,7 @@ tails (1.4.1) unstable; urgency=medium
       Thanks to config/chroot_local-includes/lib/live/config/0001-sane-clock,
       these scenarios cannot happen, and since we test that it works they
       can be safely removed.
+    - Test that the hardware clock is not modified at shutdown. (Closes: #9557)
     - Pidgin: retry looking for the roadmap URL in the topic.
     - Avoid showing Pidgin's tooltips during test, potentially confusing sikuli.
       (Closes: #9317)