[GreenKeys] Automatic LF after CR on Model 15

[John Nagle]

> Date: Fri, 21 Jun 2019 05:31:34 -0400 From: Steve
> Garrison<steve.n4tty at gmail.com>
> 
> I've never seen an automatic LF after a CR.  There always has to be a
> LF after the CR unless you want to over print the line like what gets
> done on some TTY art printouts.  In fact it was SOP to issue the
> sequence CR CR LF at the end of a line (even a short line).

It's a rare feature, but I have one Model 15 which has auto LF on CR.
Also auto CR at end of line. That's just an emergency backup feature;
a full line CR takes about two character times, so you will lose
one character if you hit the line end. But it beats typing over and
over at the last character position.

				John Nagle