[Compass-ci] Re: [PATCH v3 compass-ci 1/5] container/send-internet-mail: mail-post.rb

• raise 'empty subject.' if mail_info['subject'].nil?
• raise 'empty email address.' if mail_info['to'].nil?
• raise 'empty email content.' if mail_info['body'].nil?

Please remove ending '.' -- it's not a full sentence anyway.