Default line endings on Mac

[Andrew Janke]

Hi, Octave maintainers,

On macOS, at least with a Qt build, the default EOL mode for Octave as 
of 4.4.1 is "Mac (CR)".

I think this might be an archaism: "Mac" (\r) EOL mode text files were 
used by pre-OS X Mac OSes like Mac OS 9. Since the switch to the 
Unix-based OS X, Mac programs generally default to Unix style (\n) line 
endings. You can verify this by opening TextEdit and creating a new 
plain text file: it uses \n EOLs.

Having files created in legacy Mac (\r) mode makes it a bit harder to 
use Unix command line tools and stuff like GitHub with those files.

Can/should Octave be changed to default to Unix (\n) EOLs on macOS?

Cheers,
Andrew