fedocal: update package command to not use items

Signed-off-by: Aurélien Bompard <aurelien@bompard.org>

roles/fedocal/tasks/main.yml

@@ -2,8 +2,9 @@
 # Configuration for the fedocal webapp
 
 - name: install needed packages
-  package: name={{ item }} state=present
-  with_items:
+  package:
+    state: present
+    name:
     - fedocal
     - python-psycopg2
     - python-openid-cla