Adapt to latest change in master

In Id705a0431, adminSession was renamed to adminRestSession.

Change-Id: I0591156a52238c26eaffe58197204b6c231326dd
diff --git a/src/test/java/com/ericsson/gerrit/plugins/eventslog/EventsLogIT.java b/src/test/java/com/ericsson/gerrit/plugins/eventslog/EventsLogIT.java
index e2480b4..9bb2834 100644
--- a/src/test/java/com/ericsson/gerrit/plugins/eventslog/EventsLogIT.java
+++ b/src/test/java/com/ericsson/gerrit/plugins/eventslog/EventsLogIT.java
@@ -38,11 +38,11 @@
     String change1 = "refs/changes/01/1/1";
 
     createChange();
-    String response = adminSession.get(events).getEntityContent();
+    String response = adminRestSession.get(events).getEntityContent();
     assertThat(response).contains(change1);
 
     createChange();
-    response = adminSession.get(events).getEntityContent();
+    response = adminRestSession.get(events).getEntityContent();
     assertThat(response).contains(change1);
     assertThat(response).contains("refs/changes/02/2/1");
   }