PR 1767: Add a unit test for login --origin flag
PR 1767: Add a unit test for login --origin flag

[#168220036](https://www.pivotaltracker.com/story/show/168220036)

Authored-by: Eric Promislow <6c389fa4d719bbeec88fea52ca3b2497804923ad@suse.com>

cloudfoundry/cli,cloudfoundry/cli,cloudfoundry/cli