FIX syntax

Former-commit-id: b471a134

roles/vncserver/tasks/main.yml

@@ -6,8 +6,8 @@
 
 - name: install system packages apt
   apt: name={{ item }} state=present update_cache=true  force=yes
+  with_items: "{{ system_packages }}"
   become: true
-  with_items: {{ system_packages }}
   when: ansible_os_family == 'Debian'
 
 - name: force the use of KDE desktop