Merge pull request #4278 from esl/dns-discovery-fix #1118

Job	Run time
edoc on OTP 25.2	2m 10s
dynamic domains pgsql_mnesia on OTP 26.1.2	18m 25s
internal_mnesia on OTP 26.1.2	18m 57s
dynamic domains mysql_redis on OTP 26.1.2	18m 8s
dialyzer on OTP 25.2	5m 5s
dynamic domains odbc_mssql_mnesia on OTP 26.1.2	19m 18s
pgsql_mnesia on OTP 26.1.2	21m 23s
centos_7 package	5m 50s
dynamic domains pgsql_mnesia on OTP 25.3.2.6	17m 51s
mysql_redis on OTP 26.1.2	21m 26s
ubuntu_xenial package	5m 18s
odbc_mssql_mnesia on OTP 26.1.2	22m 22s
small_tests on OTP 25.3.2.9	7m 50s
small_tests on OTP 26.2.2	8m 18s
ldap_mnesia on OTP 26.1.2	17m 9s
xref on OTP 25.2	2m 1s
elasticsearch_and_cassandra_mnesia on OTP 26.1.2	7m 26s
ldap_mnesia on OTP 25.3.2.6	17m 43s
pgsql_mnesia on OTP 25.3.2.6	21m 6s
coveralls_webhook	0s
	4h 17m 46s

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