The current (org-version=9.2.4) documentation of the LANGUAGE option
for LaTeX export gives this example :
#+begin_example
(add-to-list org-latex-package-alist
'("AUTO" "babel" t ("pdflatex")))
(add-to-list org-latex-package-alist
'("AUTO" "polyglossia" t ("xelatex" "lualatex")))
#+end_example
It should be:
#+begin_example
#+bensert the example in agin_src emacs-lisp :exports none :results
none
(add-to-list 'org-latex-packages-alist
'("AUTO" "babel" t ("pdflatex")))
(add-to-list 'org-latex-packages-alist
'("AUTO" "polyglossia" t ("xelatex" "lualatex")))
#+end_src
#+end_example
i. e.:
* The name of the list has to be quoted.
* The exact list name has as "s" after "package".
* I'd give a full ~emacs-lisp~ snippet (but I agree that this is
disputable...).
Care fo a formal patch ?
HTH,
--
Emmanuel Charpentier