[LyX/master] Improve LaTeX version checking

[Jürgen Spitzmüller]

Am Dienstag, dem 10.01.2023 um 16:08 +0100 schrieb Jean-Marc
Lasgouttes:
> and in the 'magic' use of \@parse at command in chkconfig.ltx

That's a command from the LaTeX kernel that can parse a LaTeX package
string, strip the name and anything expect for the date and can also
handle different date formats (which dashes and slashes). So it outputs
a normalized date (YYYYMMDD) for anything LaTeX itself considers a
valid package date.

-- 
Jürgen