bug#19731: 24.4; /dev/null is deleted by tramp-sh.el

[Michael Albinus]

crocket <crockabiscuit@gmail.com> writes:

> On bash, if you become root, and set HISTFILE to /dev/null and
> HISTFILESIZE to a very small number, and execute more than
> $HISTFILESIZE commands, and exit bash, then
> you'll see /dev/null replaced with a regular file with permission 600.

Tramp doesn't set HISTFILESIZE to any value. Maybe it should set it to a
reasonable large number, when HISTFILE is set to /dev/null?

> If you can't reproduce it, then I'll test tramp on emacs 25 with
> 'tramp-histfile-override' set to 'unset'.

Please do.

Best regards, Michael.