Added a comment.
Use more context.
Added specs for Network::Mixins::DNS.
Refactored Network::Mixins::FTP methods to use default arguments.
Fixed duplicate parameters in Network::Mixins::FTP.
Fixed Mixins::FTP#ftp_session.
Added specs for default_port.
Added specs for Network::SMTP.
Copy pasted the @option tags.
Refactored Network::Mixins::SMTP to use default arguments.