bug#60083: 29.0.60; eshell-elecslash when in the root directory of a remote host

[Jim Porter]

On 12/19/2022 3:29 AM, montag451 via Bug reports for GNU Emacs, the 
Swiss army knife of text editors wrote:
> Thanks for looking into this. I've attached to this email a new patch
> which fixes the compilation warning.

Thanks. This looks good to me now.

Eli, should I merge this to the release branch then? (I'm not sure about 
copyright assignment paperwork and such here.)