Fix acl section

Change-Id: I5b5a1a8863ef5cc0f3b5fa9d9595e291716fb7e7
diff --git a/infra/config/global/cr-buildbucket.cfg b/infra/config/global/cr-buildbucket.cfg
index ddf1a0a..e472c7c 100644
--- a/infra/config/global/cr-buildbucket.cfg
+++ b/infra/config/global/cr-buildbucket.cfg
@@ -60,7 +60,7 @@
     role: SCHEDULER
     identity: "luci-scheduler@appspot.gserviceaccount.com"
   }
-  {
+  acls {
     role: SCHEDULER
     group: "project-r8-committers"
   }