Description:
When paccache is run as root, it prints out an error and quits. As a result, it cannot be run as a cronjob.
It's nice that it can prompt for privilege escalation if needed, but is there any reason to not work when it's started as root?

Additional info:
* pacman-contrib version 4.0.3-1
* The code responsible for the behavior is in lines 250-253 of /usr/bin/paccache:
if (( ! UID )); then
error "Do not run this script as root. You will be prompted for privilege escalation."
exit 42
fi

Steps to reproduce:
sudo paccache -r