def Parse(self, arg):
    if arg:
      doc = sys.modules["__main__"].__doc__
      flags = str(FLAGS)
      print doc or (sys.argv[0] % "\nUSAGE: %s [flags]\n")
      if flags:
        print "flags:"
        print flags
      sys.exit(1)
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/python-gflags/gflags.py/HelpFlag.Parse/swapped operands of `%`