My urfave/cli version is

2.25.0

Checklist

• Are you running the latest v2 release? The list of releases is here.
• Did you check the manual for your release? The v2 manual is here
• Did you perform a search about this problem? Here's the GitHub guide about searching.

Dependency Management

• My project is using go modules.
• My project is automatically downloading the latest version.

Describe the bug

While cli top-level-command help respects CustomHelpTemplate when printing help, cli top-level-command --help ignores it and prints SubcommandHelpTemplate instead.

Is this intentional? What is the purpose of SubcommandHelpTemplate?

If this is not intentional i can send a PR switching to CustomHelpTemplate

To reproduce

app := cli.NewApp()
	app.Name = "testapp"
        app.Commands = []*cli.Command{
		        {
			        Name:   "top-level-command",
			        Action: func(c *cli.Context) error { return nil },
			        CustomHelpTemplate: "TESTING",
			 }
}

go run ./cmd/app top-level-command --help

Observed behavior

It prints SubcommandHelpTemplate

Expected behavior

go run ./cmd/app top-level-command --help should print CustomHelpTemplate

Additional context

temporalio/cli#153

Want to fix this yourself?

Yes

Run go version and paste its output here

go version

Run go env and paste its output here