old_contents: #!/usr/bin/env python
  # encoding: utf-8
  
  """
  .. codeauthor:: Tsuyoshi Hombashi <gogogo.vm@gmail.com>
  """
  
  from __future__ import absolute_import
  import argparse
  
  import logbook
  
  from ._const import TcCoomandOutput
  
  
  class ArgparseWrapper(object):
      """
      wrapper class of argparse
      """
  
      def __init__(self, version, description="", epilog=""):
          self.parser = argparse.ArgumentParser(
              formatter_class=argparse.RawDescriptionHelpFormatter,
              description=description, epilog=epilog)
          self.parser.add_argument(
              "--version", action="version", version="%(prog)s " + version)
  
          self._add_tc_command_arg_group()
          self._add_log_level_argument_group()
  
      def _add_log_level_argument_group(self):
          dest = "log_level"
  
          group = self.parser.add_mutually_exclusive_group()
          group.add_argument(
              "--debug", dest=dest, action="store_const",
              const=logbook.DEBUG, default=logbook.INFO,
              help="for debug print.")
          group.add_argument(
              "--quiet", dest=dest, action="store_const",
              const=logbook.NOTSET, default=logbook.INFO,
              help="suppress execution log messages.")
  
          return group
  
      def _add_tc_command_arg_group(self):
          group = self.parser.add_argument_group("TC Commands")
          group.add_argument(
              "--tc-command", dest="tc_command_output", action="store_const",
              const=TcCoomandOutput.STDOUT, default=TcCoomandOutput.NOT_SET,
              help="use iptables to traffic shaping.")
  
new_contents: #!/usr/bin/env python
  # encoding: utf-8
  
  """
  .. codeauthor:: Tsuyoshi Hombashi <gogogo.vm@gmail.com>
  """
  
  from __future__ import absolute_import
  import argparse
  
  import logbook
  
  from ._const import TcCoomandOutput
  
  
  class ArgparseWrapper(object):
      """
      wrapper class of argparse
      """
  
      def __init__(self, version, description="", epilog=""):
          self.parser = argparse.ArgumentParser(
              formatter_class=argparse.RawDescriptionHelpFormatter,
              description=description, epilog=epilog)
          self.parser.add_argument(
              "--version", action="version", version="%(prog)s " + version)
  
          self._add_tc_command_arg_group()
          self._add_log_level_argument_group()
  
      def _add_log_level_argument_group(self):
          dest = "log_level"
  
          group = self.parser.add_mutually_exclusive_group()
          group.add_argument(
              "--debug", dest=dest, action="store_const",
              const=logbook.DEBUG, default=logbook.INFO,
              help="for debug print.")
          group.add_argument(
              "--quiet", dest=dest, action="store_const",
              const=logbook.NOTSET, default=logbook.INFO,
              help="suppress execution log messages.")
  
          return group
  
      def _add_tc_command_arg_group(self):
          group = self.parser.add_argument_group("TC Commands")
          group.add_argument(
              "--tc-command", dest="tc_command_output", action="store_const",
              const=TcCoomandOutput.STDOUT, default=TcCoomandOutput.NOT_SET,
              help="""
              display tc commands to be executed and exit.
              commands are not actually executed.
              """)
  
subject: Fix help message