[requires.io] dependency update

Author: requires

requirements.txt

@@ -21,7 +21,7 @@ lazy-object-proxy==1.3.1
 logilab-common==1.4.2
 MarkupSafe==1.1.0          # via jinja2
 mccabe==0.6.1
-pep8-naming==0.8.0
+pep8-naming==0.8.1
 pep8==1.7.1
 prospector==1.1.6.2
 pycodestyle==2.5.0        # via prospector