08.YUM.Queries - error in example?

I think it's mistake. On CentOS 7& 8 i have logrotate on /etc/.

When i execute
[pawel@learn-linux ~]$ sudo yum provides "/logrotate.conf"
i got

No matches found

But when i run
sudo yum provides "/etc/logrotate.conf"
i got

logrotate-3.8.6-19.el7.x86_64 : Rotates, compresses, removes and mails system log files[...]

Actually it is not technically an error. The original had something like "yum provides /path/to/file" and it got "improved to logrotate.conf. The command can still be run and get a null result, as you found, and prompt you to fix it. In the next version we will either put in a non-existant but clearly non-existent example (like /path/to/file) which I would prefer to /etc/logrotate.conf, so the student can play, or just drop everything after "as in..."