[LyX/master] Handle the case of outdated chkconfig.ltx in user directory

[Jürgen Spitzmüller]

Am Sonntag, dem 21.04.2024 um 11:42 +0200 schrieb Pavel Sanda:
> Not sure if it's woth the flurry of new commits, but:
> 1) "We" sounds somewhat unusual in our messages
> 2) "If you did not copy the script there" was somewhat confusing on
> first reading as it does not relate to the previous sentence, but the
> first one (->"If you did not copy the original script there")
> 3) maybe by purpose -> on purpose ?

Feel free to improve, but I suppose it needs to be done soon at least
in 2.4.x.

-- 
Jürgen