`#[arg(value_delimiter = ':')]` Delimiter isnt displayed in the help message.

[max-ishere]

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Clap Version

4.5.2

Describe your use case

Most of the arguments are already documented by clap, I didnt even have to do anything (nice). However the delimiter doesnt show up in the help message.

    /// Colon-separated list of lock types
    #[arg(required = true, value_delimiter = ':')]
    #[clap(long)]
    what: Vec<InhibitTarget>,

Options:
      --what <WHAT>  Colon-separated list of lock types [possible values: shutdown, sleep, ...]

Describe the solution you'd like

The delimiter should be shown like this:

Options:
      --what <WHAT>  [`:` separated list of: shutdown, sleep, ...]

Alternatives, if applicable

No response

Additional Context

No response