engine: resources: Make net and firewalld resources quieter

They are too noisy!

engine/resources/firewalld.go

@@ -318,7 +318,9 @@ func (obj *FirewalldRes) CheckApply(ctx context.Context, apply bool) (bool, erro
 		if obj.zone == "" {
 			return false, fmt.Errorf("unexpected empty zone")
 		}
-		obj.init.Logf("zone: %s\n", obj.zone)
+		if obj.init.Debug {
+			obj.init.Logf("zone: %s", obj.zone)
+		}
 	}
 
 	checkOK := true

engine/resources/net.go

@@ -427,7 +427,9 @@ func (obj *NetRes) addrCheckApply(ctx context.Context, apply bool) (bool, error)
 	if !apply {
 		return false, nil
 	}
-	obj.init.Logf("addrCheckApply(%t)", apply)
+	if obj.init.Debug {
+		obj.init.Logf("addrCheckApply(%t)", apply)
+	}
 
 	// check each address and delete the ones that aren't in the definition
 	if err := obj.iface.addrApplyDelete(obj.Addrs); err != nil {