Add --git-only option

Author: mdeweerd

codespell_lib/tests/test_basic.py

@@ -8,7 +8,7 @@
 from io import StringIO
 from pathlib import Path
 from shutil import copyfile
-from typing import Any, Generator, Optional, Tuple, Union
+from typing import Any, Generator, List, Optional, Tuple, Union
 from unittest import mock
 
 import pytest
@@ -520,7 +520,7 @@ def test_exclude_file(
     assert cs.main("-x", f"{fname_dummy1},{fname},{fname_dummy2}", bad_name) == 1
 
 
-def run_git(path: Path, *args: str[]) -> None:
+def run_git(path: Path, *args: List[str]) -> None:
     subprocess.run(  # noqa: S603
         ["git", "-C", path, *list(args)],  # noqa: S607
         capture_output=False,