update changelog for 8676

changelog.html

@@ -55,6 +55,9 @@ Upcoming changes</a>
   <li class=bug>
     Fixed a log rotation configuration problem on Red Hat
     (<a href="http://issues.jenkins-ci.org/browse/JENKINS-5784">issue 5784</a>)
+  <li class=bug>
+    Windows XP slave stopped working in 1.396 (related to name change)
+    (<a href="http://issues.jenkins-ci.org/browse/JENKINS-8676">issue 8676</a>)
   <li class=rfe>
     Debian package will force-terminate Jenkins if it fails to shut down in 5 seconds.
     (<a href="http://issues.jenkins-ci.org/browse/JENKINS-5415">issue 5415</a>)