[ONOS-7731] Update api interface & implementation of openstack vtap app

Change-Id: I7c3c7888b00a7357b13e3b1756e9cd0a1bb6a5c0
diff --git a/apps/openstackvtap/app/src/main/webapp/WEB-INF/web.xml b/apps/openstackvtap/app/src/main/webapp/WEB-INF/web.xml
index 8b44537..109fbe7 100644
--- a/apps/openstackvtap/app/src/main/webapp/WEB-INF/web.xml
+++ b/apps/openstackvtap/app/src/main/webapp/WEB-INF/web.xml
@@ -18,7 +18,7 @@
          xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
          xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
          id="ONOS" version="2.5">
-    <display-name>Openstack vTap REST API v1.0</display-name>
+    <display-name>Openstack Vtap REST API v1.0</display-name>
 
     <security-constraint>
         <web-resource-collection>