Disable justify on ^J

Hello,

I'm facing an issue with using nano on Ubuntu Linux through PuTTY on 
Windows. I need to copy and paste a few lines of a configuration file 
into the file in the editor. Naturally the file uses Unix line endings 
(LF only) because it can also be copied over directly. Unfortunately, 
the two line ending characters, CR and LF, have the corresponding key 
input ^M and ^J. Now while ^M (CR) is actually documented to insert a 
new line (which is exactly what the Enter key does), ^J (LF) does not do 
the same thing, or nothing at least, but instead it messes up the 
document by removing some line breaks over the place.

Interestingly, LF, the Unix line ending, causes justify, whereas CR, 
that alone is the Mac OS classic line ending, causes a new line. CR and 
LF, Windows line ending, would do both. I don't understand why the thing 
isn't broken everywhere but actually seems to work for interactive Linux 
users.

So I need a way to permanently disable or remap the ^J hotkey. How does 
that work? I'm not interested in justify, this is a simple text editor, 
not a word processor.

In the current state, I cannot use nano to maintain server config files 
through SSH. I'm not sure how to solve this otherwise. I don't want to 
go back to vim, and I have no experience with emacs. Are there other 
editors that are similarly easy to use as nano but don't have this major 
issue?

Actually I can't remember having this trouble before. Is justify (with 
that hotkey) a new feature that was added with Ubuntu 16.04? Or even 
later through a security update?

Yves

PS: Please CC me because I'm not subscribed to the list. (Mailing lists 
are too complicated to use for single use.)

_______________________________________________
Help-nano mailing list
[email protected]
https://lists.gnu.org/mailman/listinfo/help-nano