225186d test_help: test "help" command without cache

Authored and Committed by mreznik 6 years ago
    test_help: test "help" command without cache
    
    This test case addresses upsteam ticket #6999, where "ipa help"
    does not work if called when no schema is cached.
    
    https://pagure.io/freeipa/issue/7325
    
    Reviewed-By: Christian Heimes <cheimes@redhat.com>