Comment # 2 on bug 928459 from Marius Tomaschewski

The patch in https://github.com/openSUSE/wicked/pull/593 should fix it
to read also sysctl's from /usr/lib/sysctl.d.

I've applied it to testing, that is test RPMs will be available at:

http://download.opensuse.org/repositories/network:/wicked:/testing/openSUSE_Tumbleweed/