Ignore spurious E203 from flake8 (see PyCQA/pycodestyle#914)

johnsca · johnsca · commit 9ab7ab0a14d1 · 2021-02-10T11:53:48.000-05:00
diff --git a/tox.ini b/tox.ini
@@ -35,3 +35,4 @@ deps =
 
 [flake8]
 max-line-length: 88
+ignore: E203
