chore: restore a green pre-commit run

[Eljees]

Run linters on code base fails on master itself (run on d5c7b77), so no pull request in this repository gets a usable signal out of that job. Three hooks are red.

pydocstyle - src/docformatter/classify.py:481

D301: Use r""" if any backslashes in a docstring

_is_blank_line spells out "\n" and " \n" in its docstring, so it needs an r-string. That one is mine, from #369 - sorry. The rendered text does not change: "\\n" in a plain docstring and "\n" in a raw one are the same two characters.

mypy - src/docformatter/configuration.py:46

error: Incompatible types in assignment (expression has type "None", variable has type Module)  [assignment]

The ImportError fallback from #371 assigns None to a name mypy has already bound to a module. A targeted # type: ignore[assignment] is the usual spelling for an optional import. I first tried declaring tomllib: Optional[ModuleType] above the try, which mypy accepts, but that puts a statement ahead of from docformatter import __pkginfo__ and ruff then reports E402.

end-of-file-fixer - CHANGELOG.md carries three trailing blank lines.

One thing worth flagging: CHANGELOG.md is regenerated by heinrichreimer/github-changelog-generator-action in do-release.yml and pushed straight to master by EndBug/add-and-commit, so it never passes through pre-commit and those blank lines will come back at the next release. If you would rather not re-strip them every time, adding CHANGELOG.md to exclude: in .pre-commit-config.yaml would settle it for good - happy to do that here instead, whichever you prefer.

Checked against the pinned hook versions - pydocstyle 6.3.0, mypy 1.20.1, black 26.3.1, isort 8.0.1, ruff 0.15.11, eradicate 3.0.1 and docformatter's own hook all come back clean. pytest tests/ is 509 passed, 4 skipped, identical to master.

[Eljees]

A nudge on this one, since it blocks more than itself.

Run linters on code base currently fails on master at d5c7b77, and therefore on every pull request where that job has run: #373, #374 and #324. Three separate hooks report it: a pydocstyle D301 on _is_blank_line that came in with my merged #369, a mypy [assignment] in configuration.py from #371, and three trailing blank lines in CHANGELOG.md. This branch fixes all three, which is why the job is green here while it stays red elsewhere. It is still mergeable/clean against today's master, and the six Python jobs pass.

One of the three will come back on its own: CHANGELOG.md is regenerated by do-release.yml and pushed straight to master, so it never passes through pre-commit. Listing it under exclude: in .pre-commit-config.yaml would settle that permanently. I left the choice to you rather than deciding it here; say the word and I will add it to this branch.