Quieten AnyEvent::DNS::EtcHosts check on PERL_ANYEVENT_HOSTS env var

Netdisco/bin/netdisco-daemon-fg

@@ -26,9 +26,11 @@ use Role::Tiny::With;
 use MCE::Signal '-setpgrp';
 use MCE;
 
-# set max outstanding requests for AnyEvent::DNS
+# set defaults for AnyEvent::DNS
 local $ENV{'PERL_ANYEVENT_MAX_OUTSTANDING_DNS'}
     = setting('dns')->{max_outstanding} || 10;
+local $ENV{'PERL_ANYEVENT_HOSTS'}
+    = setting('dns')->{hosts_file} || '/etc/hosts';
 
 # set temporary MCE files' location in home directory
 my $home = ($ENV{NETDISCO_HOME} || $ENV{HOME});