format
abstract fun formatHelp(error: UsageError?, prolog: String, epilog: String, parameters: List<HelpFormatter.ParameterHelp>, programName: String = ""): String
Return a help string to show the user.
Parameters
error
The error encountered, if there was one
prolog
Text to display before any parameter information
epilog
Text to display after any parameter information
parameters
Information about the command's parameters
program
The name of the currently executing program