Update CHANGELOG-EE.md for 11.9.9-ee

[ci skip]

CHANGELOG-EE.md

@@ -114,6 +114,13 @@ Please view this file on the master branch, on stable branches it's out of date.
 - Improve project service desk settings. !10381
 
 
+## 11.9.9 (2019-04-23)
+
+### Fixed (1 change)
+
+- Fix approval rules when used with relative url root. !10819
+
+
 ## 11.9.8 (2019-04-11)
 
 ### Fixed (1 change)

ee/changelogs/unreleased/11107-fix-exposed-api-urls-for-approvals.yml

----
-title: Fix approval rules when used with relative url root
-merge_request: 10819
-author:
-type: fixed