Update test code for changed code in Sisimai::MTA::Exim
Update test code for changed code in Sisimai::MTA::Exim

jcbf/Sisimai,azumakuniyuki/p5-Sisimai,jcbf/Sisimai,azumakuniyuki/p5-Sisimai,sisimai/p5-Sisimai