bug#870: Repeatable instance of bug#870

[Jason Rumney <jasonr@gnu.org>]

Juanma Barranquero wrote:
> After rereading the file, in Emacs it shows as:
>
> 	* time-stamp.el:^M	* time.el:
>
> which I interpret as if, while reading, the ^M was read without ^L and
> so taken literally, while the ^L was missing.
>
> Then, if I write it back, the file on disk contains
>
> 0000 7ff0 20 74 69 6d 65 2d 73 74  61 6d 70 2e 65 6c 3a 0d   time-stamp.el:.
> 0000 8000 09 2a 20 74 69 6d 65 2e  65 6c 3a 0d 0a 09 2a 20  .* time.el:...*
>
> so a LF has gone missing.
>   

Yes, you're right it is a LF (^J) that has gone missing - I was 
confused. So maybe I am wrong about exactly what happens in that part of 
the decode functions - maybe the CR does get written to the buffer, but 
the following LF is somehow swallowed.