Author :
Bogdan Harjoc
Date :
2018-08-09 13:04:52
Hash :0033f5cc Message :evdns: handle NULL filename explicitly
Otherwise we will try to open NULL filename and got EFAULT and anyway
will got the same return code from evdns_base_resolv_conf_parse_impl()
Closes: #680 (cherry-picked)
(cherry picked from commit 3e6553a1808989c15b8dd1945b4707b7d35667ad)