Silence more mrtg warnings

mrtg/tasks/main.yml

@@ -27,6 +27,13 @@
   file: path=/etc/mrtg.cfg group=mrtg
   tags: mrtg
 
+- name: ensure the mrtg user can read and write directories
+  file: path="{{item}}" state=directory owner=mrtg group=mrtg mode=0755
+  with_items:
+    - /var/lib/mrtg
+    - /var/log/mrtg
+  tags: mrtg
+
 - name: ensure the mrtg user can get the lock
   copy:
     src: tmpfiles.conf