[JENKINS-18634] Noting in changelog.

changelog.html

@@ -194,6 +194,9 @@ Upcoming changes</a>
 </ul>
 <h3><a name=v1.526>What's new in 1.526</a> (2013/08/05)</h3>
 <ul class=image>
+  <li class=bug>
+    HudsonAuthenticationEntryPoint can break CLI support, because the port isn't exposed properly.
+    (<a href="https://issues.jenkins-ci.org/browse/JENKINS-18634">issue 18634</a>)
   <li class=rfe>
     Report an user friendly error page if a deletion of a build fails.
     (<a href="https://github.com/jenkinsci/jenkins/pull/827">pull request 827</a>)