Add freopen_s

Somehow was missing even when the wide variant is available.

mingw-w64-headers/crt/sec_api/stdio_s.h

diff --git a/mingw-w64-headers/crt/sec_api/stdio_s.h b/mingw-w64-headers/crt/sec_api/stdio_s.h
index 26f43fb..d4962de 100644
--- a/mingw-w64-headers/crt/sec_api/stdio_s.h
+++ b/mingw-w64-headers/crt/sec_api/stdio_s.h
@@ -88,6 +88,7 @@
   _CRTIMP int __cdecl _vsnprintf_l(char *_DstBuf,size_t _MaxCount,const char *_Format,_locale_t _Locale,va_list _ArgList);
   _CRTIMP int __cdecl _vsnprintf_c_l(char *_DstBuf,size_t _MaxCount,const char *,_locale_t _Locale,va_list _ArgList);
   _CRTIMP errno_t __cdecl fopen_s(FILE **_File,const char *_Filename,const char *_Mode);
+  _CRTIMP errno_t __cdecl freopen_s(FILE** _File, const char *_Filename, const char *_Mode, FILE *_Stream);
 
   _CRTIMP char* __cdecl gets_s(char*,rsize_t);
   __DEFINE_CPP_OVERLOAD_SECURE_FUNC_0_0(char*,get_s,char,_DstBuf)