Comment # 4 on bug 1028408 from Dominique Leuenberger

With Tumbleweed 0612, the infrastructure has been updated completely and
/etc/os-release now shows:

> ls -la /etc/os-release
lrwxrwxrwx 1 root root 21 Jun 13 04:40 /etc/os-release -> ../usr/lib/os-release