cli: idempotent `rad id update`
Instead of producing an error when there is no update during rad id update, a
warning is issued with helpful tips. The command is considered is still
considered successful.
Instead of producing an error when there is no update during rad id update, a
warning is issued with helpful tips. The command is considered is still
considered successful.
Changes:
- Updated to idempotent warning in rad-id-private test
Changes:
- Change the warning to a plain message
Rebase, small tweaks.