Fix tox.ini parse error with tox 4.2.8

The validation of setenv in the recent tox like 4.2.8 seems more strict.
We need a space between a factor and envvar.

Note that we need to discuss the three variants of PYTHONWARNINGS
but this commit focuses on fixing the gate failure due to tox.ini.

Change-Id: I13be2d39850e77f15e5bbf67b0022b10b09e5c6f
This commit is contained in:
Akihiro Motoki 2023-01-12 12:23:42 +09:00
parent aec6340398
commit 20966c4968