[arch-dev-public] usermove update

Hi guys, The recent updates of kmod, systemd and udev in testing moves /lib/{systemd,udev,modprobe.d,depmod.d} to /usr/. The old location will, for the time being, continue to work for config files (as well as udev rules and systemd unit files). However, helper programs installed to /lib/{systemd,udev} will have to be moved to /usr/lib. This has been done for all the official packages, but third-party packages will have to be updated. Cheers, Tom