Fixed logs aggregation rule

Change-Id: I5c524c2f3c8f57f31950782047bc2b07a019926e
diff --git a/glance/meta/heka.yml b/glance/meta/heka.yml
index db0898d..dd46e89 100644
--- a/glance/meta/heka.yml
+++ b/glance/meta/heka.yml
@@ -83,7 +83,7 @@
 aggregator:
   alarm_cluster:
     glance_logs:
-      policy: highest_severity
+      policy: status_of_members
       alerting: enabled
       group_by: hostname
       match: