Fix commandline --help exception

[skyan]

currently when running oaieval --help, it will throw an exception:

Traceback (most recent call last):
  File "/Users/yanlin/miniconda3/envs/modelenv/bin/oaieval", line 8, in <module>
    sys.exit(main())
  File "/Users/yanlin/workspace/github/evals/evals/cli/oaieval.py", line 264, in main
    args = cast(OaiEvalArguments, parser.parse_args(sys.argv[1:]))
  File "/Users/yanlin/miniconda3/envs/modelenv/lib/python3.10/argparse.py", line 1833, in parse_args
    args, argv = self.parse_known_args(args, namespace)
  File "/Users/yanlin/miniconda3/envs/modelenv/lib/python3.10/argparse.py", line 1866, in parse_known_args
    namespace, args = self._parse_known_args(args, namespace)
  File "/Users/yanlin/miniconda3/envs/modelenv/lib/python3.10/argparse.py", line 2079, in _parse_known_args
    start_index = consume_optional(start_index)
  File "/Users/yanlin/miniconda3/envs/modelenv/lib/python3.10/argparse.py", line 2019, in consume_optional
    take_action(action, args, option_string)
  File "/Users/yanlin/miniconda3/envs/modelenv/lib/python3.10/argparse.py", line 1943, in take_action
    action(self, namespace, argument_values, option_string)
  File "/Users/yanlin/miniconda3/envs/modelenv/lib/python3.10/argparse.py", line 1106, in __call__
    parser.print_help()
  File "/Users/yanlin/miniconda3/envs/modelenv/lib/python3.10/argparse.py", line 2567, in print_help
    self._print_message(self.format_help(), file)
  File "/Users/yanlin/miniconda3/envs/modelenv/lib/python3.10/argparse.py", line 2551, in format_help
    return formatter.format_help()
  File "/Users/yanlin/miniconda3/envs/modelenv/lib/python3.10/argparse.py", line 283, in format_help
    help = self._root_section.format_help()
  File "/Users/yanlin/miniconda3/envs/modelenv/lib/python3.10/argparse.py", line 214, in format_help
    item_help = join([func(*args) for func, args in self.items])
  File "/Users/yanlin/miniconda3/envs/modelenv/lib/python3.10/argparse.py", line 214, in <listcomp>
    item_help = join([func(*args) for func, args in self.items])
  File "/Users/yanlin/miniconda3/envs/modelenv/lib/python3.10/argparse.py", line 214, in format_help
    item_help = join([func(*args) for func, args in self.items])
  File "/Users/yanlin/miniconda3/envs/modelenv/lib/python3.10/argparse.py", line 214, in <listcomp>
    item_help = join([func(*args) for func, args in self.items])
  File "/Users/yanlin/miniconda3/envs/modelenv/lib/python3.10/argparse.py", line 540, in _format_action
    help_text = self._expand_help(action)
  File "/Users/yanlin/miniconda3/envs/modelenv/lib/python3.10/argparse.py", line 637, in _expand_help
    return self._get_help_string(action) % params
TypeError: %o format: an integer is required, not dict

the reason is just a '%' symbol in help string, use %% instead.

[mmtmn]

LGTM! Nice find!

[etr2460]

Amazing, thanks for the fix!