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: Ia2094dd29876f0b3387b4d9016ac47da678ddf72
This commit is contained in:
ZhongShengping 2018-10-16 11:40:18 +08:00
parent 4d0921eab9
commit b5ae548d15

@ -1,5 +1,5 @@
[tox]
minversion = 1.6
minversion = 2.0
skipsdist = True
envlist = releasenotes