tests: fix a copy/paste name duplication in storage.py Flagged by PyCharm as a redeclared name without usage, because the name matches the function immediately preceding it. But since this differs by doing regular reads instead of raw reads, I assume we still want it. But I don't see either function being called anywhere. Differential Revision: https://phab.mercurial-scm.org/D7769

[tool.black]
line-length = 80
exclude = '''
build/
| wheelhouse/
| dist/
| packages/
| \.hg/
| \.mypy_cache/
| \.venv/
| mercurial/thirdparty/
| contrib/python-zstandard/
'''
skip-string-normalization = true
quiet = true