anchor.diff:  
   . Call it:
   +
  ++
  +.Show help
   ----
   $ ./myscript --help
   SYNOPSIS:
   myscript --greet <number> [--debug] [--help|-h|-?] [--list <lang=msg>...]...
   
   REQUIRED PARAMETERS:
  -    --greet <number>             Number of times to greet. 
  +    --greet <number>             Number of times to greet.
   
   OPTIONS:
       --debug                      (default: false)
  
positive.code: 		fmt.Fprintf(os.Stderr, opt.HelpSynopsis())
  		os.Exit(1)
  	}
  	if !debug {
  		logger.SetOutput(ioutil.Discard)
  	}
  	logger.Printf("Remaining: %v\n", remaining)
  
  	for i := 0; i < greetCount; i++ {
  		fmt.Println("Hello World, from go-getoptions!")
  	}
  	if len(greetings) > 0 {
  		fmt.Printf("Greeting List:\n")
  		for k, v := range greetings {
  
negative.code: 
  ----
  +
  .Show errors
  ----
  $ ./myscript
  ERROR: Missing required option 'greet'!
  
  SYNOPSIS:
  myscript --greet <number> [--debug] [--help|-h|-?] [--list <lang=msg>...]...
  ----
  +
  .Show errors
  ----
  $ ./myscript -g
  ERROR: Missing argument for option 'greet'!
  