IntentManager: give each thread a uniq name in ThreadPool

Change-Id: I64c2e45aba3ae65a747271d02d1d9b83bcfc848c
diff --git a/core/net/src/main/java/org/onosproject/net/intent/impl/IntentManager.java b/core/net/src/main/java/org/onosproject/net/intent/impl/IntentManager.java
index b65f5d8..21361d5 100644
--- a/core/net/src/main/java/org/onosproject/net/intent/impl/IntentManager.java
+++ b/core/net/src/main/java/org/onosproject/net/intent/impl/IntentManager.java
@@ -133,7 +133,7 @@
         trackerService.setDelegate(topoDelegate);
         batchService.setDelegate(batchDelegate);
         eventDispatcher.addSink(IntentEvent.class, listenerRegistry);
-        executor = newFixedThreadPool(NUM_THREADS, namedThreads("onos-intent"));
+        executor = newFixedThreadPool(NUM_THREADS, namedThreads("onos-intent-%d"));
         idGenerator = coreService.getIdGenerator("intent-ids");
         Intent.bindIdGenerator(idGenerator);
         log.info("Started");