msvcrt: Don't forward wcslen to ntdll.

dlls/msvcrt/msvcrt.spec

@@ -1489,7 +1489,7 @@
 @ cdecl wcscpy_s(ptr long wstr) MSVCRT_wcscpy_s
 @ cdecl wcscspn(wstr wstr) ntdll.wcscspn
 @ cdecl wcsftime(ptr long wstr ptr) MSVCRT_wcsftime
-@ cdecl wcslen(wstr) ntdll.wcslen
+@ cdecl wcslen(wstr) MSVCRT_wcslen
 @ cdecl wcsncat(wstr wstr long) ntdll.wcsncat
 @ cdecl wcsncat_s(wstr long wstr long) MSVCRT_wcsncat_s
 @ cdecl wcsncmp(wstr wstr long) ntdll.wcsncmp

dlls/msvcrt/wcs.c

@@ -1848,3 +1848,11 @@ MSVCRT_wchar_t* CDECL MSVCRT_wcschr(const MSVCRT_wchar_t *str, MSVCRT_wchar_t ch
 {
     return strchrW(str, ch);
 }
+
+/***********************************************************************
+ *              wcslen (MSVCRT.@)
+ */
+int CDECL MSVCRT_wcslen(const MSVCRT_wchar_t *str)
+{
+    return strlenW(str);
+}