Fixes syntax error in the tox integration tests to gather the environment.
The error would otherwise be:
% tox -e integration
integration: failed with pass_env values cannot contain whitespace, use comma to have multiple values in a single line, invalid values found 'POWERWALL_IP POWERWALL_PASSWORD'
integration: FAIL code 1 (0.00 seconds)
evaluation failed :( (0.03 seconds)
Fixes syntax error in the tox integration tests to gather the environment.
The error would otherwise be: