[  108s] checking for udev_new in -ludev... no

This means e.g. that lsblk falls back to direct device probing instead of
getting device properties from udev, so it displays nothing (useful) for
non-root users. This directly contradicts manual page: "lsblk command reads the
sysfs filesystem and udev db to gather  information".

I tested Leap 42, Leap 15 and TW - all behave the same. Other distributions
seem to do it right (for sure on Ubuntu 18.04).

Fix surely must go in Leap 15.2 and probably Leap 15.1 needs patch as well.

See also
https://forums.opensuse.org/showthread.php/539802-lsblk-why-should-extended-use-of-lsblk-require-root-permissions