ansible-playbooks/general#85 Fix some complex when statements

tasks/main.yml

@@ -11,4 +11,4 @@
 
     - debug: msg='We have to implement some Drupal site specific configuration here'
 
-  when: not excluded_roles or "drupalconsole" not in excluded_roles and php_version_main|default("7") != "7"
+  when: (not excluded_roles or "drupalconsole" not in excluded_roles) and php_version_main|default("7") != "7"