[HatoholActorMail] Use 4space indent to apply pep8.
[HatoholActorMail] Create 2lines to apply pep8.
[HatoholActorMail] Add space after a charactor ":".
[HatoholActorMail]Remove a charactor ";".
[HatoholActorMail]Fix indent.
[HatoholActorMail]Remove unnecessary space and line.