Raises an exception with help option flag

[Brian Oxley (binkley)]

After a new installation with Homebrew, this was a surprising result:

$ ki -h
Usage: ki [-h] [--version] 

  -h, --help                Prints help
  --version                 Print version
Exception in thread "main" kotlinx.cli.HelpPrintedException
	at kotlinx.cli.FlagArgumentsKt$help$1.invoke(FlagArguments.kt:96)
	at kotlinx.cli.FlagAction$DefaultImpls.invoke(Actions.kt:9)
	at kotlinx.cli.FlagActionBase.invoke(FlagArguments.kt:4)
	at kotlinx.cli.CommandLineParser.doParse(CommandLineParser.kt:56)
	at kotlinx.cli.CommandLineParser.parseTokenized(CommandLineParser.kt:21)
	at kotlinx.cli.CommandLineParser.parse(CommandLineParser.kt:11)
	at kotlinx.cli.CommandLineParser.parse(CommandLineParser.kt:7)
	at kotlinx.cli.ParseKt.parse(parse.kt:8)
	at org.jetbrains.kotlinx.ki.shell.KotlinShell.main(KotlinShell.kt:22)

[Brian Oxley (binkley)]

(An aside -- I see you're using JLine3, such a nice library! You might consider handling command-line option flags with Picocli via the picocli-shell-jline3 dependency. The two libraries work together nicely by design.)