Merge branch 'feature/monitoring-syncid' into 'master'

pluralise plugins

See merge request !4
diff --git a/collectd/files/collectd.grain b/collectd/files/collectd.grain
index 7f60573..38f30a0 100644
--- a/collectd/files/collectd.grain
+++ b/collectd/files/collectd.grain
@@ -1,4 +1,4 @@
-collectd_plugin:
+collectd_plugins:
 
 {%- for service_name, service in pillar.items() %}
 {%- if service.get('_support', {}).get('collectd', {}).get('enabled', False) %}