The syntax of the help command is incomplete. The correct syntax is as follows:
help [-e] [<command>|about|legal]
Parameters
-e displays the help text in extensive mode. The following format is also supported: <command> -e.
-h displays the help text in normal mode. The following format is also supported: <command> -h.
about displays the version information about CLI.
legal displays the licensing terms of the CLI.