Don't use xmpps-client SRV records if target is "."

connect.go

@@ -52,9 +52,11 @@ func connect(options xmpp.Options, directTLS bool) (*xmpp.Client, error) {
 		// Look up xmpps-client SRV records.
 		if _, addrs, err := net.LookupSRV("xmpps-client", "tcp", server); err == nil {
 			if len(addrs) > 0 {
-				for _, adr := range addrs {
-					srvMixed = append(srvMixed, srv{adr.Target, true,
-						adr.Port, adr.Priority, adr.Weight})
+				if addrs[0].Target != "." {
+					for _, adr := range addrs {
+						srvMixed = append(srvMixed, srv{adr.Target, true,
+							adr.Port, adr.Priority, adr.Weight})
+					}
 				}
 			}
 		}