Suppress log copy output in gates

Copying collectd logs is half of the job ouput.
This change is to remove the verbosity of the syncronize
tasks by applying --quiet to only show errors

Change-Id: I39b47b844aab87d043a2cd745103d6589f3632e3

roles/collect-collectd/tasks/main.yml

@@ -52,6 +52,8 @@
     mode: pull
     copy_links: true
     verify_host: true
+    rsync_opts:
+      - "--quiet"
 
 - name: copy collectd rrd files
   synchronize:
@@ -60,6 +62,8 @@
     mode: pull
     copy_links: true
     verify_host: true
+    rsync_opts:
+      - "--quiet"
 
 - name: start collectd service
   service:

tests/playbooks/post.yml

@@ -89,3 +89,5 @@
         mode: pull
         copy_links: true
         verify_host: true
+        rsync_opts:
+          - "--quiet"