mruby-io/io.c: remove wrong ISO section comment
@@ -1636,7 +1636,7 @@ mrb_init_io(mrb_state *mrb)
mrb_define_method(mrb, io, "close_on_exec=", io_set_close_on_exec, MRB_ARGS_REQ(1));
mrb_define_method(mrb, io, "close_on_exec?", io_close_on_exec_p, MRB_ARGS_NONE());
mrb_define_method(mrb, io, "closed?", io_closed, MRB_ARGS_NONE()); /* 15.2.20.5.2 */
- mrb_define_method(mrb, io, "pid", io_pid, MRB_ARGS_NONE()); /* 15.2.20.5.2 */
+ mrb_define_method(mrb, io, "pid", io_pid, MRB_ARGS_NONE());
mrb_define_method(mrb, io, "fileno", io_fileno, MRB_ARGS_NONE());
mrb_define_method(mrb, io, "write", io_write, MRB_ARGS_ANY()); /* 15.2.20.5.20 */
mrb_define_method(mrb, io, "pread", io_pread, MRB_ARGS_ANY()); /* ruby 2.5 feature */
