old_contents: import os
  import pwd
  
  from os.path import abspath, basename, dirname, join
  
  from twisted.python.util import initgroups
  from twisted.scripts.twistd import runApp
  from twisted.scripts._twistd_unix import daemonize
  
  
  daemonize = daemonize # Backwards compatibility
  
  
  def dropprivs(user):
    uid, gid = pwd.getpwnam(user)[2:4]
    initgroups(uid, gid)
    os.setregid(gid, gid)
    os.setreuid(uid, uid)
    return (uid, gid)
  
  
  def run_twistd_plugin(filename):
      from carbon.conf import get_parser
      from twisted.scripts.twistd import ServerOptions
  
      bin_dir = dirname(abspath(filename))
      root_dir = dirname(bin_dir)
      storage_dir = join(root_dir, 'storage')
      os.environ.setdefault('GRAPHITE_ROOT', root_dir)
      os.environ.setdefault('GRAPHITE_STORAGE_DIR', storage_dir)
  
      program = basename(filename).split('.')[0]
  
      # First, parse command line options as the legacy carbon scripts used to
      # do.
      parser = get_parser(program)
      (options, args) = parser.parse_args()
  
      if not args:
        parser.print_usage()
        return
  
      # This isn't as evil as you might think
      __builtins__["instance"] = options.instance
      __builtins__["program"] = program
  
      # Then forward applicable options to either twistd or to the plugin itself.
      twistd_options = ["--no_save"]
  
      # If no reactor was selected yet, try to use the epool reactor if
      # available.
      try:
          from twisted.internet import epollreactor
          twistd_options.append("--reactor=epoll")
      except:
          pass
  
      if options.debug:
          twistd_options.extend(["-n", "--logfile", "-"])
      if options.profile:
          twistd_options.append("--profile")
      if options.pidfile:
          twistd_options.extend(["--pidfile", options.pidfile])
  
      # Now for the plugin-specific options.
      twistd_options.append(program)
  
      if options.debug:
          twistd_options.append("--debug")
  
      for option_name, option_value in vars(options).items():
          if (option_value is not None and
              option_name not in ("debug", "profile", "pidfile")):
              twistd_options.extend(["--%s" % option_name.replace("_", "-"),
                                     option_value])
  
      # Finally, append extra args so that twistd has a chance to process them.
      twistd_options.extend(args)
  
      config = ServerOptions()
      config.parseOptions(twistd_options)
  
      runApp(config)
  
new_contents: import os
  import pwd
  
  from os.path import abspath, basename, dirname, join
  
  from twisted.python.util import initgroups
  from twisted.scripts.twistd import runApp
  from twisted.scripts._twistd_unix import daemonize
  
  
  daemonize = daemonize # Backwards compatibility
  
  
  def dropprivs(user):
    uid, gid = pwd.getpwnam(user)[2:4]
    initgroups(uid, gid)
    os.setregid(gid, gid)
    os.setreuid(uid, uid)
    return (uid, gid)
  
  
  def run_twistd_plugin(filename):
      from carbon.conf import get_parser
      from twisted.scripts.twistd import ServerOptions
  
      bin_dir = dirname(abspath(filename))
      root_dir = dirname(bin_dir)
      storage_dir = join(root_dir, 'storage')
      os.environ.setdefault('GRAPHITE_ROOT', root_dir)
      os.environ.setdefault('GRAPHITE_STORAGE_DIR', storage_dir)
  
      program = basename(filename).split('.')[0]
  
      # First, parse command line options as the legacy carbon scripts used to
      # do.
      parser = get_parser(program)
      (options, args) = parser.parse_args()
  
      if not args:
        parser.print_usage()
        return
  
      # This isn't as evil as you might think
      __builtins__["instance"] = options.instance
      __builtins__["program"] = program
  
      # Then forward applicable options to either twistd or to the plugin itself.
      twistd_options = ["--no_save"]
  
      # If no reactor was selected yet, try to use the epoll reactor if
      # available.
      try:
          from twisted.internet import epollreactor
          twistd_options.append("--reactor=epoll")
      except:
          pass
  
      if options.debug:
          twistd_options.extend(["-n", "--logfile", "-"])
      if options.profile:
          twistd_options.append("--profile")
      if options.pidfile:
          twistd_options.extend(["--pidfile", options.pidfile])
  
      # Now for the plugin-specific options.
      twistd_options.append(program)
  
      if options.debug:
          twistd_options.append("--debug")
  
      for option_name, option_value in vars(options).items():
          if (option_value is not None and
              option_name not in ("debug", "profile", "pidfile")):
              twistd_options.extend(["--%s" % option_name.replace("_", "-"),
                                     option_value])
  
      # Finally, append extra args so that twistd has a chance to process them.
      twistd_options.extend(args)
  
      config = ServerOptions()
      config.parseOptions(twistd_options)
  
      runApp(config)
  
subject: Fix a typo in comment. Thanks for tmm1 for watching after me.