mitchellh/vagrant — pull request #3628 by gildegoma (2014-05-04 19:48:59+00:00)
Title: provisioners/ansible: show ansible-playbook in use

#### Motivation:
By printing out the ansible command used behind the scene, we can certainly ease
the "support effort" (IRC, Mailing list and Gitub Issues of Vagrant and Ansible) to quickly identify whether a problem is due to Vagrant provisioner or Ansible itself.