Minor cosmetic fixes (#6792)

changelog/6737.breaking.rst

@@ -1,7 +1,7 @@
 The ``cached_result`` attribute of ``FixtureDef`` is now set to ``None`` when
 the result is unavailable, instead of being deleted.
 
-If your plugin perform checks like ``hasattr(fixturedef, 'cached_result')``,
+If your plugin performs checks like ``hasattr(fixturedef, 'cached_result')``,
 for example in a ``pytest_fixture_post_finalizer`` hook implementation, replace
 it with ``fixturedef.cached_result is not None``. If you ``del`` the attribute,
 set it to ``None`` instead.

src/_pytest/main.py

@@ -130,8 +130,6 @@ def pytest_addoption(parser):
         metavar="nodeid_prefix",
         help="deselect item (via node id prefix) during collection (multi-allowed).",
     )
-    # when changing this to --conf-cut-dir, config.py Conftest.setinitial
-    # needs upgrading as well
     group.addoption(
         "--confcutdir",
         dest="confcutdir",

src/_pytest/monkeypatch.py

@@ -262,7 +262,7 @@ class MonkeyPatch:
         # A call to syspathinsert() usually means that the caller wants to
         # import some dynamically created files, thus with python3 we
         # invalidate its import caches.
-        # This is especially important when any namespace package is in used,
+        # This is especially important when any namespace package is in use,
         # since then the mtime based FileFinder cache (that gets created in
         # this case already) gets not invalidated when writing the new files
         # quickly afterwards.

testing/test_assertion.py

@@ -1074,9 +1074,7 @@ def test_reprcompare_notin():
 
 
 def test_reprcompare_whitespaces():
-    config = mock_config()
-    detail = plugin.pytest_assertrepr_compare(config, "==", "\r\n", "\n")
-    assert detail == [
+    assert callequal("\r\n", "\n") == [
         r"'\r\n' == '\n'",
         r"Strings contain only whitespace, escaping them using repr()",
         r"- '\n'",