Bad error message when inheriting from Generic multiple times

[JelleZijlstra]

>>> from typing import Generic, TypeVar
>>> T = TypeVar("T")
>>> U = TypeVar("U")
>>> class X(Generic[T], Generic[U]): pass
... 
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Users/jelle/py/cpython/Lib/typing.py", line 1088, in _generic_init_subclass
    raise TypeError(
TypeError: Cannot inherit from Generic[...] multiple types.

Should say "multiple times".

Noticed by @carljm in #103764 (comment).

Linked PRs

• gh-104328: Fix typo in typing.Generic multiple inheritance error message #104335
• [3.11] gh-104328: Fix typo in typing.Generic multiple inheritance error message (GH-104335) #104338