fix E202 'Octal file permissions must contain leading zero or be a string'

roles/maintenance/tasks/main.yml

@@ -15,7 +15,7 @@
     dest: "{{ service_nginx_conf }}"
     owner: root
     group: root
-    mode: 644
+    mode: 0644
   notify: reload nginx
   when: maintenance is defined and maintenance|bool
 
@@ -25,7 +25,7 @@
     dest: "{{ maintenance_http_dir }}/{{ service_domain }}/503.html"
     owner: root
     group: root
-    mode: 644
+    mode: 0644
   when: maintenance is defined and maintenance|bool
 
 - name: force reload nginx

roles/postgrey/tasks/main.yml

@@ -19,7 +19,7 @@
     state: "directory"
     owner: "root"
     group: "root"
-    mode: 755
+    mode: 0755
 
 - name: install service unit override file
   template: