Todd Gamblin 993ee7f199 environments: add activate/deactivate tests, work wtih set -u ... - [x] Add shell tests to ensure that `spack env activate`, `spack env deactivate`, and `despacktivate` continue to work. - [x] Also ensure that activate and deactivate both work with `set -u`		2019-07-20 00:36:56 -07:00
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spack	environments: add activate/deactivate tests, work wtih set -u	2019-07-20 00:36:56 -07:00