As per summary yast2-country generated wrong file for me on my desktop:

cat /usr/lib/udev/rules.d/70-installation-keyboard.rules
# Generated by Yast to handle the layout of keyboards connected during
installation
ENV{ID_INPUT_KEYBOARD}=="1", ENV{XKBLAYOUT}="us", ENV{XKBMODEL}="microsoftpro",
ENV{XKBVARIANT}="basic"

Error:
Dec 29 16:53:58 arcarius systemd-udevd[500]: invalid key/value pair in file
/usr/lib/udev/rules.d/70-installation-keyboard.rules on line 2,starting at
character 104 ('9')

Solution:
Just deleting the file makes my system error free :)