fixing dhcp serialization problem

Change-Id: Ie049f9c1e464ca9a2b651df74f7b979628d0d745
diff --git a/utils/misc/src/test/java/org/onlab/packet/DhcpTest.java b/utils/misc/src/test/java/org/onlab/packet/DhcpTest.java
index ff48331..aac8141 100644
--- a/utils/misc/src/test/java/org/onlab/packet/DhcpTest.java
+++ b/utils/misc/src/test/java/org/onlab/packet/DhcpTest.java
@@ -130,7 +130,7 @@
 
         assertEquals(serverName, dhcp.serverName);
         assertEquals(bootFileName, dhcp.bootFileName);
-        assertEquals(1, dhcp.options.size());
+        assertEquals(2, dhcp.options.size());
         assertEquals(hostNameOption, dhcp.options.get(0));
     }