@ncw Thank you. Tested and working on Win10 and Ubuntu.
Blank response with exit code 0 shown for team/shared drive remote that has id/secret auth.
Error message and 404 for same remote using a service account that is not authorized.
Tested also with rclone lsd, lsf and size and the test beta is now returning an error code (as it should).
rclone about remote: rclone about remote: --drive-service-account-file=/sa/1.json 2019/11/28 10:00:46 Failed to about: About call failed: failed to get Team/Shared Drive info: googleapi: Error 404: Shared drive not found: 0123456789VA, notFound
Fingers crossed, one day Google might let us query actual info from our little Shared Drives