bug#40401: 28.0.50; M-x landmark not exists, while described in manual

[Eli Zaretskii]

> Date: Fri, 3 Apr 2020 16:35:02 +0300
> From: Jean Louis <bugs@gnu.support>
> Cc: Noam Postavsky <npostavs@gmail.com>, youngfrog@members.fsf.org,
>   40401@debbugs.gnu.org
> 
> My version is git 28.0.50, but maybe I was reading info of Emacs
> version 25 installed on my system. I guess that is the problem, that I
> don't know how to add proper info file to my paths.

You need to either run 'install-info' for that, or customize
Info-default-directory-list to put the directory you want at the front
of the list.