Change error message for greater clarity (#13505)

This changes the use of the Latin term Cf to the word "See" to make the error message simpler and more broadly understandable.

Author: gene1wood

news/24039ade-db69-4d15-ae86-a11e230f7388.trivial.rst

@@ -391,7 +391,7 @@ class MissingCallableSuffix(InstallationError):
     def __init__(self, entry_point: str) -> None:
         super().__init__(
             f"Invalid script entry point: {entry_point} - A callable "
-            "suffix is required. Cf https://packaging.python.org/"
+            "suffix is required. See https://packaging.python.org/"
             "specifications/entry-points/#use-for-scripts for more "
             "information."
         )