Created by: Lekensteyn
Rules are taken from https://git.lekensteyn.nl/ltunify/. The "VX Nano" receivers (c51a and c526) have been removed as these are only used for Cordless mice and are not even enabled in Solaar.
The installer is updated to check for the existence of a group and mktemp to
create temporary files. (relying on $TMPDIR is a bad idea.) This installer is
too fancy, most users will be fine with install -m644 rules.d/42-logitech-unify-permissions.rules /etc/udev/rules.d/. If you are lazy
and want to make solaar-cli work over SSH, then this installer will help you.
It won't add you to the plugdev group, instead it will edit the rule to use
your user's primary group.
Oh, and it does not change this group to "root" as that is pretty useless given that root is the default.