Find a way to cleanly print wallet and account help

[Alex6323]

Description

We use this logic to print the help programmatically:

if let Err(err) = WalletCli::try_parse_from(vec!["Wallet:", "help"]) {
    println!("{err}");
}

If I understand correctly ... we print the error which just contains the help text because try_parse_from failed. Is there no clean way to achieve this that doesn't involve error logic?

Motivation

The code is weird.

Open questions (optional)

Maybe this is the way. I dunno. My dark saber is broken.

Are you planning to do it yourself in a pull request?

Maybe.

[thibault-martinez]

Closed by #1154