advapi32/tests: Fix a test failure on NT4.

dlls/advapi32/tests/registry.c

@@ -963,9 +963,10 @@ static void test_reg_open_key(void)
 
     hkResult = NULL;
     ret = RegOpenKeyExA(HKEY_CLASSES_ROOT, "\\clsid", 0, KEY_QUERY_VALUE, &hkResult);
-    ok(ret == ERROR_SUCCESS || /* NT/2k/XP */
+    ok(ret == ERROR_SUCCESS || /* 2k/XP */
+       ret == ERROR_BAD_PATHNAME || /* NT */
        ret == ERROR_FILE_NOT_FOUND /* Win9x,ME */
-       , "expected ERROR_SUCCESS or ERROR_FILE_NOT_FOUND, got %d\n", ret);
+       , "expected ERROR_SUCCESS, ERROR_BAD_PATHNAME or ERROR_FILE_NOT_FOUND, got %d\n", ret);
     RegCloseKey(hkResult);
 
     /* WOW64 flags */