If paths are being excluded in the project root, log an informational message about it

I don't know if we necessarily want to bother admins with this information all the time (i.e., we shouldn't show it on the status report, or as a validation warning).

I would suggest that, on status check, UnknownPathExcluder should log the list of excluded paths, at the info level. That way, it's available for forensic and informational purposes, but doesn't butt into the UI where it's not useful.

I offer for your review, a version of this that logs the excluded paths on status check.

Always logging excluded paths during StatusCheckEvent seems reasonable. Unless … this runs on every Automatic Updates cron update? 🤔 (I do not recall.) Because with a high enough cron update frequency this would then spam your site's log 😅

@Wim Leers no \Drupal\automatic_updates\Commands\AutomaticUpdatesCommandBase::runStatusChecks, which will run the status checks during cron or in a direct running of the `auto-update` script, will not run the status checks more that 1x an hour.

Unless the result have been cleared programmatically

I think it looks. I have to review it more but I left a comment about updating the log message

Per discussion with @tedbow, I beefed up the log message to explain why the paths are excluded, and what if anything should be done about it.

@phenaproxima RTBC but please fix the 1 type I pointed out

Automatically closed - issue fixed for 2 weeks with no activity.