Less verbose ansible for fullstack

vagrant/base/fullstack/Vagrantfile

@@ -39,7 +39,7 @@ Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
   config.vm.provision :ansible do |ansible|
     # point Vagrant at the location of your playbook you want to run
     ansible.playbook = "../../../playbooks/vagrant-fullstack.yml"
-    ansible.verbose = "vvvv"
+    ansible.verbose = "vvv"
     # set extra-vars here instead of in the vagrant play so that
     # they are written out to /edx/etc/server-vars.yml which can
     # be used later when running ansible locally