We should emphasize that Macintosh actually uses LF.

Maybe we could just drop the CR option?

I submitted an excellent pull request some time back to address this issue, which also addressed the fact that Macintosh uses LF (by calling the CR one 'Classic Mac'). Unfortunately it was rejected by @donho for a reason that made no sense.
#787

How about this?

Windows (CR LF)
Unix / Mac (LF)
Old Mac (CR)

The important part is to not trick Mac users into using CR.
Also, many Mac users probably don't know they are using a Unix system.

@Eldaw Interesting...never realized there was a PR so similar.

I'm not attached to the terminology I used, it's what Visual Studio used so figured it was an OK way of doing it. I understand that VS is targeted to a more technical audience than N++ is. Presumably in the majority of cases (not all) if a user is converting line endings they have some idea what line endings they want even without terminology.

I think it is important to keep the CR/LF/CRLF terminology that way if someone disagrees with the naming scheme they can at least know exactly what line endings they are converting to.

The important part is to not trick Mac users into using CR.
Also, many Mac users probably don't know they are using a Unix system.

I totally agree, however most Mac users probably don't know the difference between "Mac" vs "Old Mac" (although maybe they do? I'm not a Mac person :) ).

I totally agree, however most Mac users probably don't know the difference between "Mac" vs "Old Mac" (although maybe they do? I'm not a Mac person :) ).

Agree, I just tried to get a concise result, and I got not satisfying result using "Mac OS X" or "OS X".

That's why I suggested above to remove the CR mode.
Useless (unless proven otherwise), no more confusion to worry about.