crt: test: In t_stat_slash.c print wchar_t* string via %ls format

Signed-off-by: LIU Hao <lh_mouse@126.com>

mingw-w64-crt/testcases/t_stat_slash.c

diff --git a/mingw-w64-crt/testcases/t_stat_slash.c b/mingw-w64-crt/testcases/t_stat_slash.c
index 9e335e3..ef73b35 100644
--- a/mingw-w64-crt/testcases/t_stat_slash.c
+++ b/mingw-w64-crt/testcases/t_stat_slash.c
@@ -19,9 +19,9 @@
 {
   struct stat buf;
   if (wstat(path, &buf) == 0)
-    wprintf (L"OK [%s]\n", path);
+    wprintf (L"OK [%ls]\n", path);
   else {
-    wprintf (L"ERROR [%s]\n", path);
+    wprintf (L"ERROR [%ls]\n", path);
     abort();
   }
 }