Do not add match field, if the src/dst IP Prefix is 0.0.0.0/0

Change-Id: I22345c24111178d07f19a05946b30013ed81ab49
diff --git a/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/OpenstackVtapAddCommand.java b/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/OpenstackVtapAddCommand.java
index 5d116da..8d9955f 100644
--- a/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/OpenstackVtapAddCommand.java
+++ b/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/cli/OpenstackVtapAddCommand.java
@@ -92,7 +92,7 @@
             vTapCriterionBuilder.srcIpPrefix(IpPrefix.valueOf(srcIp));
             vTapCriterionBuilder.dstIpPrefix(IpPrefix.valueOf(dstIp));
         } catch (Exception e) {
-            print("Inputted valid source IP & destination IP in CIDR (e.g., \"10.1.0.0/16\")");
+            print("Inputted valid source IP & destination IP in CIDR (e.g., \"10.1.0.4/32\")");
             return false;
         }