[PATCH] run-pungi: atomic: Change the `ostree_osname` to be fedora-atomic

[Colin Walters]

On Sat, Apr 25, 2015, at 12:16 PM, Dennis Gilmore wrote:

> https://fedoraproject.org/wiki/User:Adamwill/Draft_fedora_image_naming_policy  

These aren't image names so much as they're *namespace prefixes*.  The
ref prefix is strongly analogous to the `fedora/` prefix on the Docker Hub
for the base image. 

If the Docker image were changed to be a product
of the Cloud group, and we changed the Docker name to be:
`Fedora-Cloud_Docker` or something, it would *really* stick out as
strange on the Hub.

Many things use what Sourceforge calls "unix names" style:
http://sourceforge.net/p/forge/documentation/Renaming/
such as package names, yum repository IDs, usernames,
Docker image names, etc. etc.  The OSTree "osname" is
intended to be in this style.

Given that it's a namespace, the simplest would just be `fedora`,
like the Docker image name.  But failing that, the current
`fedora-atomic` is very much preferable over introducing
a "product naming style" where "unix names" are expected.

Does that explain things better?  Thanks!