Be more explicit setting LC_ALL/LANG env vars
Be more explicit setting LC_ALL/LANG env vars

Test for when one is not set but the other is and when both are set in
addition to testing when neither is set.

cloudfoundry/cli-acceptance-tests,cloudfoundry/cli-acceptance-tests,cloudfoundry/GATS,cloudfoundry/GATS,cloudfoundry/GATS,cloudfoundry/cli-acceptance-tests