group plugdev in udev rules shipped with flashrom

Description:

The package now ships a udev rule file that expects the group plugdev

According to the wiki, this is a bug, the group plugdev should not be used on Arch.

The result is several lines like that shown in journalctl -p 3 -xb

systemd-udevd[493]: /usr/lib/udev/rules.d/flashrom.rules:33 Unknown group 'plugdev', ignoring.

Additional info:

• package version(s): 1.3.0-1 and 1.3.0-2
• config and/or log files:

/usr/lib/udev/rules.d/flashrom.rules:33 Unknown group 'plugdev', ignoring.
/usr/lib/udev/rules.d/flashrom.rules:37 Unknown group 'plugdev', ignoring.
/usr/lib/udev/rules.d/flashrom.rules:41 Unknown group 'plugdev', ignoring.
/usr/lib/udev/rules.d/flashrom.rules:45 Unknown group 'plugdev', ignoring.
/usr/lib/udev/rules.d/flashrom.rules:49 Unknown group 'plugdev', ignoring.
/usr/lib/udev/rules.d/flashrom.rules:53 Unknown group 'plugdev', ignoring.
/usr/lib/udev/rules.d/flashrom.rules:57 Unknown group 'plugdev', ignoring.
/usr/lib/udev/rules.d/flashrom.rules:61 Unknown group 'plugdev', ignoring.
/usr/lib/udev/rules.d/flashrom.rules:62 Unknown group 'plugdev', ignoring.
/usr/lib/udev/rules.d/flashrom.rules:63 Unknown group 'plugdev', ignoring.
/usr/lib/udev/rules.d/flashrom.rules:67 Unknown group 'plugdev', ignoring.
/usr/lib/udev/rules.d/flashrom.rules:71 Unknown group 'plugdev', ignoring.
/usr/lib/udev/rules.d/flashrom.rules:75 Unknown group 'plugdev', ignoring.
/usr/lib/udev/rules.d/flashrom.rules:79 Unknown group 'plugdev', ignoring.
/usr/lib/udev/rules.d/flashrom.rules:83 Unknown group 'plugdev', ignoring.
/usr/lib/udev/rules.d/flashrom.rules:87 Unknown group 'plugdev', ignoring.
/usr/lib/udev/rules.d/flashrom.rules:91 Unknown group 'plugdev', ignoring.
/usr/lib/udev/rules.d/flashrom.rules:94 Unknown group 'plugdev', ignoring.

Steps to reproduce:

1. Update/Install either of the affected versions
2. Reboot