Fix: Configuration tests now run in reverse
Fix: Configuration tests now run in reverse

$_ENV and getenv/putenv are handled differently. When run in
non-standard order the value for 'foo' can still the one from the tests
for #1181 and #2353. Therefore testing for $_ENV['foo'] will give
unpredictable results.

Change to check the value for 'foo_force', which should always be as
expected. Alternatively we could remove the assertion altogether.

Firehed/phpunit,sebastianbergmann/phpunit