Update tox to 3.20.0#1295

pyup-bot wants to merge 1 commit into

masterkragniz/python-etcd3:masterfrom

pyup-update-tox-3.5.3-to-3.20.0kragniz/python-etcd3:pyup-update-tox-3.5.3-to-3.20.0Copy head branch name to clipboard