[Bug 44631] New: Malformed line 1 in source list /etc/apt/sources.list.d/ additional-repositories.list (dist parse)

https://bugs.winehq.org/show_bug.cgi?id=44631

Bug ID: 44631
           Summary: Malformed line 1 in source list
                    /etc/apt/sources.list.d/additional-repositories.list
                    (dist parse)
           Product: Wine
           Version: 3.0
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Novice user of Linux Mint 17.2

Simply trying to install Wine 3.0.

Follow WineHQ install instructions.

CMD reads:

@ ~ $ sudo apt-add-repository 'deb
https://dl.winehq.org/wine-builds/ubuntu/trusty main'
@ ~ $ sudo apt-get update
E: Malformed line 1 in source list
/etc/apt/sources.list.d/additional-repositories.list (dist parse)
E: The list of sources could not be read.
@ ~ $ sudo apt-get install --install-recommends winehq-stable
Reading package lists... Error!
E: Malformed line 1 in source list
/etc/apt/sources.list.d/additional-repositories.list (dist parse)
E: The list of sources could not be read.
E: The package lists or status file could not be parsed or opened.

Wine install fails.

I hope I haven't made a nooby mistakes. I don't mean to divert your attention.