IntentManager: lower log level to dump details

Change-Id: Ib0e1d34d45c9df9369b6ad28c6c86e47987f9366
diff --git a/core/net/src/main/java/org/onlab/onos/net/intent/impl/IntentManager.java b/core/net/src/main/java/org/onlab/onos/net/intent/impl/IntentManager.java
index 2f8875a..7773ecf 100644
--- a/core/net/src/main/java/org/onlab/onos/net/intent/impl/IntentManager.java
+++ b/core/net/src/main/java/org/onlab/onos/net/intent/impl/IntentManager.java
@@ -833,7 +833,8 @@
     private class InternalBatchDelegate implements IntentBatchDelegate {
         @Override
         public void execute(IntentOperations operations) {
-            log.info("Execute operations: {}", operations);
+            log.info("Execute {} operation(s).", operations.operations().size());
+            log.debug("Execute operations: {}", operations.operations());
             //FIXME: perhaps we want to track this task so that we can cancel it.
             monitorExecutor.execute(new IntentInstallMonitor(operations));
         }