Merge "build_image: Support common args"

def main(argv):

  if len(argv) != 4:

  args = common.ParseOptions(argv, __doc__)

  if len(args) != 4:

    print(__doc__)

    sys.exit(1)

  common.InitLogging()

  in_dir = argv[0]

  glob_dict_file = argv[1]

  out_file = argv[2]

  target_out = argv[3]

  in_dir = args[0]

  glob_dict_file = args[1]

  out_file = args[2]

  target_out = args[3]

  glob_dict = LoadGlobalDict(glob_dict_file)

  if "mount_point" in glob_dict: