missing documentation detail?

The following documentation comment has been logged on the website:

Page: https://www.postgresql.org/docs/18/app-pgverifybackup.html
Description:

I was disappointed not to find the return code information on the
pg_verifybackup pages - I am using the utility in a script and it seems I
cannot distinguish between an invalid or 'bad' backup and a failed run (due
to e.g. bad path, missing manifest file) - it *seems* that either will
simply return as 1 but I am not certain. I would like to differentiate
between these states.