Reduce diff a little

Author: barneygale

Lib/pathlib/_local.py

@@ -583,8 +583,8 @@ def match(self, path_pattern, *, case_sensitive=None):
                 return False
         return True
 
-# Subclassing abc.ABC makes isinstance() checks slower,
-# which in turn makes path construction slower. Register instead!
+# Subclassing os.PathLike makes isinstance() checks slower,
+# which in turn makes Path construction slower. Register instead!
 os.PathLike.register(PurePath)