Using VlanId String None instead of -1

Change-Id: I2597ac37285cc3f40ad1304d668564a56a5b862f
diff --git a/web/api/src/test/java/org/onosproject/rest/resources/HostResourceTest.java b/web/api/src/test/java/org/onosproject/rest/resources/HostResourceTest.java
index 82bff4d..f2fe3e3 100644
--- a/web/api/src/test/java/org/onosproject/rest/resources/HostResourceTest.java
+++ b/web/api/src/test/java/org/onosproject/rest/resources/HostResourceTest.java
@@ -390,7 +390,7 @@
                 .post(Entity.json(jsonStream));
         assertThat(response.getStatus(), is(HttpURLConnection.HTTP_CREATED));
         String location = response.getLocation().getPath();
-        assertThat(location, Matchers.startsWith("/hosts/11:22:33:44:55:66/-1"));
+        assertThat(location, Matchers.startsWith("/hosts/11:22:33:44:55:66/None"));
     }
 }