pass_env values cannot contain whitespace #14522
Description
Bug Report
tox4 does not support pass_env values with whitespace in tox.ini.
To Reproduce
$ tox -l
...
tox.tox_env.errors.Fail: pass_env values cannot contain whitespace, use comma to have multiple values in a single line, invalid values found 'PYTEST_XDIST_WORKER_COUNT PROGRAMDATA PROGRAMFILES(X86)'
$
Expected Behavior
tox -l shows list of envs
Actual Behavior
$ tox -l
...
tox.tox_env.errors.Fail: pass_env values cannot contain whitespace, use comma to have multiple values in a single line, invalid values found 'PYTEST_XDIST_WORKER_COUNT PROGRAMDATA PROGRAMFILES(X86)'
$
Your Environment
- Mypy version used: 0.991
- Python version used: 3.9.16
- tox version: 4.3.5