How to make custom -h achieve the same effect as default -h

[bin-ly]

Please tell me how to set -h so that the prompt "For more information, try '--help'." will appear when incorrect command line parameters are entered? The -h I set myself is shown in Figure 1, and the default -h is shown in Figure 2. How should I modify it to achieve the effect of the default -h?

[epage]

I think it'd be reasonable to search for a ArgAction::Help and report the long arg from that. Feel free to create an issue.

[bin-ly]

I hope ArgAction::Help can also have the prompt "For more information, try '--help'", as shown in Figure 2 above. Can this be achieved?

[bin-ly]

After I set "disable_help_flag = true" and

    #[arg(
        long,
        short = 'h',
        help = fluents("helps"),
        action = ArgAction::Help,
        global = true
    )]
    pub help: Option<String>,

the output is like this：

[bin-ly]

By default, there will be an error message "For more information, try '--help'". I hope that such a result can be achieved by customizing ArgAction::Help.