def add_default_options(opts)
      option "show_help", "-h", "--help", "Show this message"
      option "show_version", "-v", "--version", "Print the name and version"
      option "show_backtrace", "-t", "--trace", "Show the full backtrace when an error occurs"
      opts.on("-v", "--version", "Print the version") do
        puts "#{name} #{version}"
        exit(0)
      end

      opts.on("-t", "--trace", "Show full backtrace if an error occurs") do
        @trace = true
      end

      opts.on_tail("-h", "--help", "Show this message") do
        puts self
        exit
      end
    end
def add_default_options(opts)
      option "show_help", "-h", "--help", "Show this message"
      option "show_version", "-v", "--version", "Print the name and version"
      option "show_backtrace", "-t", "--trace", "Show the full backtrace when an error occurs"
      opts.on("-v", "--version", "Print the version") do
        puts "#{name} #{version}"
        exit(0)
      end

      opts.on("-t", "--trace", "Show full backtrace if an error occurs") do
        @trace = true
      end

      opts.on_tail("-h", "--help", "Show this message") do
        puts self
        exit
      end
    end
Public: Add version and help options to the command

 opts - instance of OptionParser

 Returns nothing