[VOL-2736]host and port should be specified as a single argument not as two separate arguments

Change-Id: I312fe753ac0fe62c942f335371e6449809ecfb85
diff --git a/pkg/kafka/endpoint_manager_test.go b/pkg/kafka/endpoint_manager_test.go
index de7d028..3790221 100644
--- a/pkg/kafka/endpoint_manager_test.go
+++ b/pkg/kafka/endpoint_manager_test.go
@@ -29,6 +29,7 @@
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/status"
 	"math"
+	"strconv"
 	"testing"
 	"time"
 )
@@ -77,7 +78,7 @@
 		return status.Error(codes.Internal, "Embedded server failed to start")
 	}
 
-	ep.backend = db.NewBackend("etcd", "127.0.0.1", kvClientPort, timeout, "service/voltha")
+	ep.backend = db.NewBackend("etcd", "127.0.0.1"+":"+strconv.Itoa(kvClientPort), timeout, "service/voltha")
 	return nil
 }