Update cliff dependency (1.3.1)

Gary Kotton · Gary Kotton · commit 94a60cfe5b0d · 2013-02-27T13:54:22.000Z
Fixed bug 1134163

Change-Id: I2bae8dee2f95f5372bb1b513a40da31fdd7962b2
diff --git a/tools/pip-requires b/tools/pip-requires
@@ -1,5 +1,5 @@
 argparse
-cliff>=1.2.1
+cliff>=1.3.1
 httplib2
 iso8601
 prettytable>=0.6,<0.7
