The script used to identify and update the change is added into the GitHub
workflows script directory. A workflow action can be created to trigger the
script to update the headers on the first of every new year. Possibly a task for
a consequent PR.
* [languagetool] fix for non standard language code
In the language tool layer, the `languagetool-get-language` function is used to
deduce the correct language code for languagetool from the variable
`ispell-local-dictionary`, `ispell-dictionary`, or from the list
`ispell-dicts-name2locale-equivs-alist` by replacing dash by underscore. However
many lanagetool codes are not formatted consistently with what can be found in
ispell, check `languagetool --list <file>` for the exact list.
Therefore I created this list of convertion between ispell codes and lanagetool
codes.
* [languagetool] Reorder language code by usage
* [languagetool] translate non-obvious language code
special-case handle the translation when a simple conversion from underscore to
dash does not work
Co-authored-by: emiltoacs <mil@evo.nomail>