Update min tox version to 2.0

The commands used by constraints need at least tox 2.0. Update to reflect reality, which should help with local running of constraints targets. Change-Id: I93bfb026367672d95a2261fc21be26d785b12bcd
2018-10-20 12:59:42 +00:00 · 2018-10-20 12:59:42 +00:00 · c66c5f598b
commit c66c5f598b
parent 178b6f7511
1 changed files with 1 additions and 1 deletions
--- a/tox.ini
+++ b/tox.ini
@ -1,5 +1,5 @@
 [tox]
-minversion = 1.6
+minversion = 2.0
 envlist = docs, linters
 skipdist = True