Fix #10027. st_nlink not set on Windows calls to os.stat/lstat.

Note: This patch has no tests because as of now there is no way to create
links. #8879 adds that and the tests will go in there. I've manually observed
that existing links on my system function properly with this.

Misc/NEWS

@@ -10,6 +10,9 @@ What's New in Python 3.2 Beta 1?
 Core and Builtins
 -----------------
 
+- Issue #10027. st_nlink was not being set on Windows calls to os.stat or
+  os.lstat. Patch by Hirokazu Yamamoto.
+
 - Issue #10474: range().count() should return integers.
 
 - Issue #10255: Fix reference leak in Py_InitializeEx().  Patch by Neil