fix typo

Rich Jones · Rich Jones · commit dde6a69faa55 · 2017-10-17T16:13:21.000-04:00
diff --git a/requirements.txt b/requirements.txt
@@ -1,4 +1,4 @@
-appdirs?=1.4.3
+appdirs>=1.4.3
 boto3>=1.4.4
 botocore>=1.5.38
 docutils>=0.13.1
