time.c: adjust buffer size in `mrb_time_asctime()`.
@@ -702,7 +702,7 @@ mrb_time_asctime(mrb_state *mrb, mrb_value self)
# endif
len = strlen(buf)-1; /* truncate the last newline */
#else
- char buf[256];
+ char buf[32];
len = snprintf(buf, sizeof(buf), "%s %s %2d %02d:%02d:%02d %.4d",
wday_names[d->tm_wday], mon_names[d->tm_mon], d->tm_mday,
