- Add an import command that imports JSON as output by
`ktutil list --json --keys`.
This is enables one to filter/edit keytabs with jq!
- Add a `merge` alias for the `copy` command, since that's effectively
what it does.
- Add a `--copy-duplicates` option to the `copy`/`merge` command.
- Add a `--no-create` option to the `get` command.
- Add a `--no-change-keys` option to the `get` command.
- Make `add` complain if it can't finish writing to the keytab.