msvcrt: Don't forward strlen to ntdll.

dlls/msvcrt/msvcrt.spec

@@ -1427,7 +1427,7 @@
 @ cdecl strerror(long) MSVCRT_strerror
 @ cdecl strerror_s(ptr long long)
 @ cdecl strftime(str long str ptr) MSVCRT_strftime
-@ cdecl strlen(str) ntdll.strlen
+@ cdecl strlen(str) MSVCRT_strlen
 @ cdecl strncat(str str long) ntdll.strncat
 @ cdecl strncat_s(str long str long) MSVCRT_strncat_s
 @ cdecl strncmp(str str long) MSVCRT_strncmp

dlls/msvcrt/string.c

@@ -781,6 +781,14 @@ MSVCRT_ulong CDECL MSVCRT_strtoul(const char* nptr, char** end, int base)
     return ret;
 }
 
+/*********************************************************************
+ *              strlen (MSVCRT.@)
+ */
+MSVCRT_size_t __cdecl MSVCRT_strlen(const char *str)
+{
+    return strlen(str);
+}
+
 /******************************************************************
  *              strnlen (MSVCRT.@)
  */