Add prefixes to syncgroups in tests.

Change-Id: I39844318bcd881e2ba7d03b83b4f36a00325ac0a
diff --git a/test/integration/test-syncgroup.js b/test/integration/test-syncgroup.js
index 80a2666..8479f59 100644
--- a/test/integration/test-syncgroup.js
+++ b/test/integration/test-syncgroup.js
@@ -261,11 +261,13 @@
   var firstVersion;
 
   var newSpec = new nosql.SyncGroupSpec({
-    description: 'new spec'
+    description: 'new spec',
+    prefixes: ['a']
   });
 
   var newSpec2 = new nosql.SyncGroupSpec({
-    description: 'another new spec'
+    description: 'another new spec',
+    prefixes: ['b']
   });
 
   setupSyncGroup(t, perms, prefixes, function(err, o) {