msvcrt: Don't forward wcsstr to ntdll.

dlls/msvcrt/msvcrt.spec

@@ -1501,7 +1501,7 @@
 @ cdecl wcsrtombs(ptr ptr long ptr) MSVCRT_wcsrtombs
 @ cdecl wcsrtombs_s(ptr ptr long ptr long ptr) MSVCRT_wcsrtombs_s
 @ cdecl wcsspn(wstr wstr) ntdll.wcsspn
-@ cdecl wcsstr(wstr wstr) ntdll.wcsstr
+@ cdecl wcsstr(wstr wstr) MSVCRT_wcsstr
 @ cdecl wcstod(wstr ptr) MSVCRT_wcstod
 @ cdecl wcstok(wstr wstr) MSVCRT_wcstok
 @ cdecl wcstok_s(ptr wstr ptr)

dlls/msvcrt/wcs.c

@@ -1856,3 +1856,11 @@ int CDECL MSVCRT_wcslen(const MSVCRT_wchar_t *str)
 {
     return strlenW(str);
 }
+
+/*********************************************************************
+ *              wcsstr (MSVCRT.@)
+ */
+MSVCRT_wchar_t* CDECL MSVCRT_wcsstr(const MSVCRT_wchar_t *str, const MSVCRT_wchar_t *sub)
+{
+    return strstrW(str, sub);
+}