flake8: increase max complexity

.flake8

@@ -7,5 +7,5 @@
 # F821: undefined name
 # F841: unused variable
 ignore=E241,E265,F401,E501,F821,F841
-max_complexity = 10
+max_complexity = 11
 exclude = ez_setup.py

scripts/run_checks.py

@@ -64,7 +64,7 @@ options = {
     'other': {
         'pylint': ['--output-format=colorized', '--reports=no',
                    '--rcfile=.pylintrc'],
-        'flake8': ['--max-complexity=10', '--config=.flake8'],
+        'flake8': ['--config=.flake8'],
     },
 }