Update hacking version

Use latest release 1.1.0 and compatible changes w.r.t pep8

Change-Id: I23612ab78f858ad4fcd84268ada47160057a097d

test-requirements.txt

@@ -1,7 +1,7 @@
 # The order of packages is significant, because pip processes them in the order
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
-hacking>=0.11.0,<0.12 # Apache-2.0
+hacking>=1.1.0,<1.2.0 # Apache-2.0
 openstackdocstheme>=1.18.1 # Apache-2.0
 PyYAML>=3.12 # MIT
 Jinja2>=2.10 # BSD License (3 clause)