VVV: The comamnd "vagrant ssh -c 'vagrant_up'" fails while doing `vagrant up`

I did a git pull recently and with the current master I am getting the following error while running the vagrant up command.

$ vagrant up
Bringing machine 'default' up with 'virtualbox' provider...
==> default: Checking if box 'ubuntu/trusty64' is up to date...
==> default: A newer version of the box 'ubuntu/trusty64' is available! You currently
==> default: have version '20160201.0.0'. The latest is version '20160217.1.0'. Run
==> default: `vagrant box update` to update.
==> default: VirtualBox VM is already running.
==> default: Checking for host entries
==> default: Running triggers after up...
==> default: Executing command "vagrant ssh -c vagrant_up"...
==> default: bash: vagrant_up: command not found
==> default: Command execution finished.
The command "vagrant ssh -c 'vagrant_up'" returned a failed exit code. The
error output is shown below:

bash: vagrant_up: command not found

I did some debugging and found that this line was introduced in #782

If I revert to master before this commit, then the vagrant up command works without any issues.