Import fixed code from https://github.com/sisimai/p5-Sisimai/commit/97b69b9126fad9e524a7e3de6fe6b2d73446f1b8
Import fixed code from https://github.com/sisimai/p5-Sisimai/commit/97b69b9126fad9e524a7e3de6fe6b2d73446f1b8

azumakuniyuki/rb-Sisimai,azumakuniyuki/rb-Sisimai