mruby-sprintf (mrb_str_format): fixed integer size confusion
Declared as int, checked as mrb_int.
@@ -1016,7 +1016,7 @@ retry:
#else
mrb_value val = GETARG();
double fval;
- int need = 6;
+ mrb_int need = 6;
fval = mrb_as_float(mrb, val);
if (!isfinite(fval)) {
