network vs network manager wait online

[Tom Horsley]

On Wed, 10 Dec 2014 15:33:31 +0100
Juan Orti wrote:

> NetworkManager-wait-online.service is disabled by default, if you 
> enabled it in the past, you should disable it:

This was a fresh install from scratch. I never enabled it
(but something did).

> # systemctl disable NetworkManager-wait-online.service

Why doesn't this service show up in list-unit-files?