bug#74844: 29.4; m-buffer: Broken Top Directory node in Info manual due to malformed Texinfo direntry

[Eli Zaretskii]

> Cc: Ihor Radchenko <yantar92@posteo.net>, 74844@debbugs.gnu.org,
>  Suhail Singh <suhailsingh247@gmail.com>
> From: Suhail Singh <suhailsingh247@gmail.com>
> Date: Sat, 14 Dec 2024 16:48:01 -0500
> 
> Btw, based on my interpretation of the Org manual
> (info "(org) Texinfo specific export settings"), I would've expected the
> below to work:
> 
> #+begin_src diff
>   -#+TEXINFO_DIR_TITLE: m-buffer-doc
>   -#+TEXINFO_DIR_DESC: Manipulate the Contents of Emacs Buffers
>   +#+TEXINFO_FILENAME: m-buffer-doc.texi
>   +#+TEXINFO_DIR_NAME: m-buffer
> #+end_src

Why do you suggest removing TEXINFO_DIR_TITLE and TEXINFO_DIR_DESC?
And why is TEXINFO_FILENAME important?