Reverting overzealous changes

mrbgems/mruby-sprintf/src/sprintf.c

@@ -808,7 +808,7 @@ retry:
             if (mrb_fixnum_p(val)) goto bin_retry;
             break;
           case MRB_TT_STRING:
-            val = mrb_str_to_inum(mrb, val, 0, FALSE);
+            val = mrb_str_to_inum(mrb, val, 0, TRUE);
             goto bin_retry;
           case MRB_TT_FIXNUM:
             v = mrb_fixnum(val);

src/object.c

@@ -539,7 +539,7 @@ mrb_convert_to_integer(mrb_state *mrb, mrb_value val, int base)
 
     case MRB_TT_STRING:
     string_conv:
-      return mrb_str_to_inum(mrb, val, base, FALSE);
+      return mrb_str_to_inum(mrb, val, base, TRUE);
 
     default:
       break;

src/string.c

@@ -2003,6 +2003,7 @@ mrb_str_to_inum(mrb_state *mrb, mrb_value str, mrb_int base, mrb_bool badcheck)
   const char *s;
   mrb_int len;
 
+  str = mrb_str_to_str(mrb, str);
   if (badcheck) {
     s = mrb_string_value_cstr(mrb, &str);
   }