Update docstrings

tests/test_requirements.py

@@ -5,15 +5,15 @@
 
 
 def test_requirements_base__pyproject() -> None:
-    # Check that all dependencies in requirements/base.txt are also in
-    # pyproject.toml.
+    """Check that all dependencies in requirements/base.txt are also in
+    pyproject.toml."""
     missing_deps = _requirements("base") - _pyproject("dependencies")
     assert not missing_deps
 
 
 def test_requirements_base__openapi() -> None:
-    # Check that all dependencies in requirements/openapi.txt are also in
-    # requirements/base.txt.
+    """Check that all dependencies in requirements/openapi.txt are also in
+    requirements/base.txt."""
     openapi = {
         dep for dep in _requirements("openapi") if not dep.startswith("setuptools")
     }
@@ -33,5 +33,5 @@ def _requirements(name: str) -> Set[str]:
 
 
 def _normalize_dependencies(deps: List[str]) -> Set[str]:
-    # Remove spaces, empty lines, and comments.
+    """Remove spaces, empty lines, and comments."""
     return {dep.replace(" ", "") for dep in deps if dep and not dep.startswith("#")}