move the warning message to where it belongs

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@279563 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/ant/taskdefs/condition/IsReachable.java

@@ -158,11 +158,10 @@ public class IsReachable extends ProjectComponent implements Condition {
         log("Probing host " + target, Project.MSG_VERBOSE);
         InetAddress address;
         try {
-            log(WARN_UNKNOWN_HOST + target);
             address = InetAddress.getByName(target);
         } catch (UnknownHostException e1) {
+            log(WARN_UNKNOWN_HOST + target);
             return false;
-
         }
         log("Host address = " + address.getHostAddress(),
                 Project.MSG_VERBOSE);