Merge pull request #401 from stackhpc/callbacks-enabled

Fix Ansible deprecation warning

Author: markgoddard

etc/kayobe/ansible.cfg

@@ -7,7 +7,7 @@ bin_ansible_callbacks = True
 # Disable fact variable injection to improve performance.
 inject_facts_as_vars = False
 # Add timing information to output
-callback_whitelist = ansible.posix.profile_tasks
+callbacks_enabled = ansible.posix.profile_tasks
 
 [ssh_connection]
 pipelining = True