This system got upgraded from openSUSE 13.1 to 13.2.

After resuming from suspend to memory DNS resolving doesn't work as
/etc/esolv.conf hase no nameserver line.  Beside the usual header with comments
it has

search example.org

but no nameserver at all.

On the other side dhcpcd-test reports a DNSSERVERS

mug:~ # dhcpcd-test enp0s25 | grep ^DNSSERVERS=
DNSSERVERS='192.168.178.1'

Network cable reconnection fixes the issue and /etc/esolv.conf got:

### many lines of comments
search example.org
nameserver 192.168.178.1
nameserver fd00::2665:11ff:fef7:203b