(process_arg): Correct last patch and write correct number of bytes

in case of %ls with precision.

diff --git a/stdio-common/vfprintf.c b/stdio-common/vfprintf.c
index bc66393a366221b0da91dc35afba358a2a98b23f..3249911cc7e8073560eeed9348ea0ba844b0c8c6 100644 (file)
--- a/stdio-common/vfprintf.c
+++ b/stdio-common/vfprintf.c
@@ -919,8 +919,8 @@ vfprintf (FILE *s, const CHAR_T *format, va_list ap)
            if (prec > 0)                                                     \
              {                                                               \
                /* The string `s2' might not be NUL terminated.  */           \
-               string = (char *) alloca (prec + 1);                          \
-               len = __wcsrtombs (string, &s2, prec + 1, &mbstate);          \
+               string = (char *) alloca (prec);                              \
+               len = __wcsrtombs (string, &s2, prec, &mbstate);              \
              }                                                               \
            else                                                              \
              {                                                               \