Updated from global requirements

OpenStack Proposal Bot · OpenStack Proposal Bot · commit 40d9965d1d6b · 2014-06-23T12:17:23.000Z
Change-Id: I7d528afc3051e423e4a405ba1bdc0cb4cc5a9071
diff --git a/test-requirements.txt b/test-requirements.txt
@@ -1,6 +1,6 @@
 hacking>=0.9.1,<0.10
 
-cliff>=1.4.3
+cliff>=1.6.0
 coverage>=3.6
 discover
 fixtures>=0.3.14
