add print msg when use -p flag

Change-Id: I7f5fc7ddcf1ada45bb4874e48b683cc028e53056
diff --git a/cli/src/main/java/org/onosproject/cli/net/IntentRemoveCommand.java b/cli/src/main/java/org/onosproject/cli/net/IntentRemoveCommand.java
index e7097f2..492b3a2 100644
--- a/cli/src/main/java/org/onosproject/cli/net/IntentRemoveCommand.java
+++ b/cli/src/main/java/org/onosproject/cli/net/IntentRemoveCommand.java
@@ -72,9 +72,9 @@
         IntentService intentService = get(IntentService.class);
         CoreService coreService = get(CoreService.class);
 
-        if (sync) {
-            print("Use Sync to remove intents - this may take a while...");
-            print("Check \"summary\" to see remove progress.");
+        if (purgeAfterRemove || sync) {
+            print("Using \"sync\" to remove/purge intents - this may take a while...");
+            print("Check \"summary\" to see remove/purge progress.");
         }
 
         ApplicationId appId = appId();