command_help

# File lib/bundler/vendor/thor/lib/thor.rb, line 167
    def command_help(shell, command_name)
      meth = normalize_command_name(command_name)
      command = all_commands[meth]
      handle_no_command_error(meth) unless command

      shell.say "Usage:"
      shell.say "  #{banner(command)}"
      shell.say
      class_options_help(shell, nil => command.options.values)
      if command.long_description
        shell.say "Description:"
        shell.print_wrapped(command.long_description, :indent => 2)
      else
        shell.say command.description
      end
    end