Clean up a few last minute things

Doc/reference/import.rst

@@ -560,8 +560,8 @@ listed below.
 
    .. versionchanged:: 3.12
       The value of ``__loader__`` is expected to be the same as
-      ``__spec__.loader``.  If they are not, an :exc:`ImportWarning` will be
-      raised.
+      ``__spec__.loader``.  The use of ``__loader__`` is deprecated and slated
+      for removal in Python 3.14.
 
 .. attribute:: __package__
 

Misc/NEWS.d/next/Core and Builtins/2022-10-04-14-04-40.gh-issue-86298.QVM7G1.rst

@@ -1,3 +1,3 @@
 In cases where ``warnings.warn_explicit()`` consults the module's loader, an
-``ImportWarning`` is issued when ``m.__loader__`` differs from
+``DeprecationWarning`` is issued when ``m.__loader__`` differs from
 ``m.__spec__.loader``.

Python/_warnings.c

@@ -999,6 +999,7 @@ get_source_line(PyInterpreterState *interp, PyObject *module_globals, int lineno
 
     module_name = _PyDict_GetItemWithError(module_globals, &_Py_ID(__name__));
     if (!module_name) {
+        Py_DECREF(loader);
         return NULL;
     }
     Py_INCREF(module_name);