Fix Event Subscription URI

While performing GET on /redfish/v1/EventService/Subscriptions/ results
in error 405 - Method not allowed.

This commit fixes the subscription URI while registering the ROUTE i.e.,
during BMCWEB_ROUTE.

TESTED :
 - GET on /redfish/v1/EventService/Subscriptions/ successfully returned
   all the list of subscribed events.

Signed-off-by: Gayathri Leburu <gayathri.leburu@intel.com>
Change-Id: I0edcfd8403e0178fe84d6b8328dabad71c4d5c98
diff --git a/redfish-core/lib/event_service.hpp b/redfish-core/lib/event_service.hpp
index 9b4f6bd..7359a82 100644
--- a/redfish-core/lib/event_service.hpp
+++ b/redfish-core/lib/event_service.hpp
@@ -173,7 +173,7 @@
 
 inline void requestRoutesEventDestinationCollection(App& app)
 {
-    BMCWEB_ROUTE(app, "/redfish/v1/EventService/Subscriptions")
+    BMCWEB_ROUTE(app, "/redfish/v1/EventService/Subscriptions/")
         .privileges(redfish::privileges::getEventDestinationCollection)
         .methods(boost::beast::http::verb::get)(
             [](const crow::Request&,