Fix breaking build due to new tox
Version 4 of Tox is currently breaking the build. Therefore, until
those issues are fixed, this change can revert to Tox 3.x.
[tox]
-minversion = 2.0
+minversion = 3.2.0
envlist = py37,pep8
skipsdist = True
+requires =
+ tox<4
[testenv]
usedevelop = True
@@ -14,7 +16,7 @@ deps =
commands =
find bandit -type f -name "*.pyc" -delete
stestr run {posargs}
-whitelist_externals =
+allowlist_externals =
find
passenv = http_proxy HTTP_PROXY https_proxy HTTPS_PROXY no_proxy NO_PROXY
