Re: lilypond-book loglevel

[Werner LEMBERG]

> lilypond-book accepts --loglevel=WARN, but not --loglevel=WARNING.
> 
> I think WARN is for lilypond, not lilypond-book (according to the
> documentation), so maybe just misdocumented?

Indeed, it is incorrectly documented; it should be 'WARN' everywhere.
Note that the `lilypond` binary is less restrictive than the scripts;
it also accepts 'warning' or 'WARNING_FOOBAR' as possible values since
only the first few characters are checked, ignoring the case.
However, it is best to stick with the standard uppercase values.

  https://gitlab.com/lilypond/lilypond/-/merge_requests/2265

Thanks for the report!


     Werner