[tox] Bump flake8 version to 3.5
Previous patches fixed new errors raised in this version.
--- a/tox.ini Mon Oct 30 09:32:26 2017 +0100
+++ b/tox.ini Mon Oct 30 09:37:20 2017 +0100
@@ -20,7 +20,7 @@
[testenv:flake8]
skip_install = true
deps =
- flake8 >= 3
+ flake8 >= 3.5
whitelist_externals =
/bin/sh
commands = /bin/sh -c "flake8 `xargs -a {toxinidir}/flake8-ok-files.txt`"