Adding 127.0.0.1 to /etc/hosts using the vagrant hosts updater?

[Andrew Leer]

I read here and here that the vagrant hostsupdater plugin is supposed to update the host's /etc/hosts (or just hosts file as the case may be); I have a need to do this with forwarded ports instead of a private network, so, is that possible, or does my end-user (another developer) have to edit the hosts file themselves when setting up the dev environment?

Vagrant.configure("2") do |config|
  # ...    

  # Forward guest port 80 to host port 8888 and name mapping
  config.vm.network :forwarded_port, guest: 80, host: 8888
  config.vm.network :forwarded_port, guest: 443, host: 8443

  # REMEMBER TO ADD THIS TO THE HOST's /etc/hosts as the loopback (127.0.0.1, or [::1])
  config.vm.hostname = "dot.org"
  config.hostsupdater.aliases = ["www.dot.org"]

  # ...
end

At the moment if I add the following manually, I can access the forwarded ports as expected but the hostsupdater plugin
doesn't do it automatically:

127.0.0.1   dot.org  # VAGRANT ...
127.0.0.1   www.dot.org # VAGRANT ...

Is it possible to use the hostsupdater plugin or something else to add these lines automatically to /etc/hosts on vagrant up, 
and remove them on vagrant destroy?

Thank you,
    Andrew J. Leer