Merge pull request #2436 from take-cheeze/mrb_args_arg

Use `MRB_ARGS_ARG(n, o)` instead of `MRB_ARGS_REQ(n) | MRB_ARGS_OPT(o)`.

mrbgems/mruby-eval/src/eval.c

@@ -173,7 +173,7 @@ f_eval(mrb_state *mrb, mrb_value self)
 void
 mrb_mruby_eval_gem_init(mrb_state* mrb)
 {
-  mrb_define_module_function(mrb, mrb->kernel_module, "eval", f_eval, MRB_ARGS_REQ(1) | MRB_ARGS_OPT(3));
+  mrb_define_module_function(mrb, mrb->kernel_module, "eval", f_eval, MRB_ARGS_ARG(1, 3));
 }
 
 void

mrbgems/mruby-time/src/time.c

@@ -720,7 +720,7 @@ mrb_mruby_time_gem_init(mrb_state* mrb)
   tc = mrb_define_class(mrb, "Time", mrb->object_class);
   MRB_SET_INSTANCE_TT(tc, MRB_TT_DATA);
   mrb_include_module(mrb, tc, mrb_module_get(mrb, "Comparable"));
-  mrb_define_class_method(mrb, tc, "at", mrb_time_at, MRB_ARGS_REQ(1) | MRB_ARGS_OPT(1)); /* 15.2.19.6.1 */
+  mrb_define_class_method(mrb, tc, "at", mrb_time_at, MRB_ARGS_ARG(1, 1));      /* 15.2.19.6.1 */
   mrb_define_class_method(mrb, tc, "gm", mrb_time_gm, MRB_ARGS_ARG(1,6));       /* 15.2.19.6.2 */
   mrb_define_class_method(mrb, tc, "local", mrb_time_local, MRB_ARGS_ARG(1,6)); /* 15.2.19.6.3 */
   mrb_define_class_method(mrb, tc, "mktime", mrb_time_local, MRB_ARGS_ARG(1,6));/* 15.2.19.6.4 */