The current command doesn't work on Fedora/RHEL/CentOS.
- `--gecos`: use `--comment` instead.
- `--group`: use `--gid` instead, `--group` means "A list of
supplementary groups" on F/R/C.
- `--disabled-password`: leave `--password` empty instead, "The default
is to disable the password".
- `--home`: use `--home-dir` and `--create-home` instead.