Update examples to Ansible 2.5.

examples/ansible/editors.yml

@@ -1,7 +1,7 @@
 ---
 
 - hosts: templatevms
-  sudo: True
+  become: True
 
   tasks:
   - name: Deploy some editors

examples/ansible/qubes-service.yml

@@ -1,7 +1,7 @@
 ---
 
 - hosts: templatevms
-  sudo: True
+  become: True
   vars:
     description: 'Qubes hello world'
     name: 'helloworld'

examples/qubesformation/realize-inventory.yml

@@ -1,6 +1,6 @@
 ---
 - hosts: dom0
-  sudo: True
+  become: True
   gather_facts: False
   tasks:
   - name: ensure that Salt /srv/user_salt directory exists

examples/sampleplaybooks/wakeupservice/wakeupservice.yml

@@ -1,7 +1,7 @@
 ---
 
 - hosts: templatevms
-  sudo: True
+  become: True
   tasks:
   - name: Set up service
     template: