ci: fix linting (#407)

* lint

* flake8: use max-line-length=88 (allow for 10% extra)

* tox: add checkqa to envlist for "tox -l"

Author: blueyed

pynvim/api/buffer.py

@@ -84,9 +84,10 @@ def __delitem__(self, idx):
         self.__setitem__(idx, None)
 
     def __ne__(self, other):
-        """ Test inequality of Buffers.
+        """Test inequality of Buffers.
 
-        Necessary for Python 2 compatibility """
+        Necessary for Python 2 compatibility.
+        """
         return not self.__eq__(other)
 
     def append(self, lines, index=-1):

setup.cfg

@@ -3,6 +3,7 @@ test = pytest
 
 [flake8]
 ignore = D211,E731,D401,W503
+max-line-length = 88
 
 [tool:pytest]
 testpaths = test

tox.ini

@@ -2,6 +2,7 @@
 envlist =
   py{27,34,35,36}-{asyncio,pyuv},pypy
   py36-docs
+  checkqa
 
 [testenv]
 deps =