Adding get flow by table REST api, fixing exceptions in dhcp

Change-Id: Idc07992a91c79f594c998b2d78b980036077c0ad
diff --git a/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/cli/DhcpRelayCommand.java b/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/cli/DhcpRelayCommand.java
index 6bf46b8..90816b0 100644
--- a/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/cli/DhcpRelayCommand.java
+++ b/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/cli/DhcpRelayCommand.java
@@ -109,7 +109,7 @@
         boolean toResetFlag;
 
         if (counter != null) {
-            if (counter.equals("counter") || reset.equals("[counter]")) {
+            if (counter.equals("counter") || counter.equals("[counter]")) {
                 print(CONUTER_HEADER);
             } else {
                 print("first parameter is [counter]");