fputwc: call __fputwc directly

Avoid another hop in the call stack.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>

newlib/libc/stdio/fputwc.c

@@ -181,5 +181,10 @@ fputwc (wchar_t wc,
   struct _reent *reent = _REENT;
 
   CHECK_INIT(reent, fp);
-  return _fputwc_r (reent, wc, fp);
+  wint_t r;
+
+  _newlib_flockfile_start (fp);
+  r = __fputwc(reent, wc, fp);
+  _newlib_flockfile_end (fp);
+  return r;
 }

newlib/libc/stdio/fputwc_u.c

@@ -44,5 +44,5 @@ fputwc_unlocked (wchar_t wc,
   struct _reent *reent = _REENT;
 
   CHECK_INIT(reent, fp);
-  return _fputwc_unlocked_r (reent, wc, fp);
+  return __fputwc(reent, wc, fp);
 }