Update hacking version to 1.1

Older hacking depends on pep8, but pep8 module is replaced by
pycodestyle. This can be resolved by updating hackinng version.

This commit also fixes E117 (over-indented) and
W605 (invalid escape sequence) warnings.

pep8 is dropped from lower-constraints.txt as it is no longer used.

Change-Id: I3a8e3b0dedf9422e4db02b525b333d12ce012a95

lower-constraints.txt

@@ -25,7 +25,7 @@ flake8==2.5.5
 future==0.16.0
 futurist==1.2.0
 greenlet==0.4.10
-hacking==0.12.0
+hacking==1.1.0
 idna==2.6
 imagesize==0.7.1
 iso8601==0.1.11
@@ -68,7 +68,6 @@ paramiko==2.0.0
 Paste==2.0.2
 PasteDeploy==1.5.0
 pbr==2.0.0
-pep8==1.5.7
 pika-pool==0.1.3
 pika==0.10.0
 positional==1.2.1

neutronclient/neutron/v2_0/lb/v2/member.py

@@ -47,8 +47,7 @@ def _add_common_args(parser):
 
 
 def _parse_common_args(body, parsed_args):
-        neutronV20.update_dict(parsed_args, body,
-                               ['weight', 'name'])
+    neutronV20.update_dict(parsed_args, body, ['weight', 'name'])
 
 
 class ListMember(LbaasMemberMixin, neutronV20.ListCommand):

neutronclient/tests/functional/core/test_readonly_neutron.py

@@ -110,7 +110,7 @@ class SimpleReadOnlyNeutronClientTest(base.ClientTestBase):
 
         commands = []
         cmds_start = lines.index('Commands for API v2.0:')
-        command_pattern = re.compile('^ {2}([a-z0-9\-\_]+)')
+        command_pattern = re.compile(r'^ {2}([a-z0-9\-\_]+)')
         for line in lines[cmds_start:]:
             match = command_pattern.match(line)
             if match:

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!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
+hacking>=1.1.0 # Apache-2.0
 
 bandit>=1.1.0 # Apache-2.0
 coverage!=4.4,>=4.0 # Apache-2.0