Fix a bug with printing `(null)` local variable name for a register.
MODIFY
src/codedump.c
src/codedump.c
@@ -11,7 +11,7 @@ static void
print_r(mrb_state *mrb, const mrb_irep *irep, size_t n)
{
if (n == 0) return;
- if (n > irep->nlocals) return;
+ if (n >= irep->nlocals) return;
if (!irep->lv[n-1]) return;
printf(" R%d:%s", (int)n, mrb_sym_dump(mrb, irep->lv[n-1]));
}

Fix a bug with printing `(null)` local variable name for a register.