When command grouping is used (in dscondig for instance) the top level help displays:

    $ dsconfig --help
    This utility may be used to define a base configuration for the Directory
    Server
    Usage:  dsconfig {subcommand} {options}

    Available subcommands:
    --help-core
        Display subcommands relating to core server
    --help-database
        Display subcommands relating to caching and back-ends
    <...>
    
This modification replaces the help sentence ("Available subcommands") by "To get the list of subcommands use:"

    dsconfig --help
    This utility may be used to define a base configuration for the Directory
    Server
    Usage:  dsconfig {subcommand} {options}

    To get the list of subcommands use:
    --help-core
        Display subcommands relating to core server
    --help-database
        Display subcommands relating to caching and back-ends
    <...>