Add minor fixes, mainly formatting

Hi @mandreko, this pull request tries to clean (mainly formatting issues) https://github.com/rapid7/metasploit-framework/pull/2823. Also worths to add to the description which device you have tested successfully with the current module, please.

Feel free to review, ask or discuss if there is any doubt. Once you feel comfortable with the changes land into your repository and https://github.com/rapid7/metasploit-framework/pull/2823 will be automatically updated and mainly ready to go!

As last step, we should need a pcap of the current module working, for both the check and exploit commands! Feel free to send it to msfdev[at]metasploit.com Don't hesitate to ask if you need PGP keys.

Thanks again for a great effort and work!