jnbek [1] filed a deletion request for perl-llg [2]: Upstream has not been updated in 18 years, zero votes and nothing depends on it. Again, I presume at one time this was a dependency for another package, but no longer is and I can not justify it's existence any longer.
[1] https://aur.archlinux.org/account/jnbek/ [2] https://aur.archlinux.org/pkgbase/perl-llg/
