[PATCH 2/5] models: move _format_name to module for future use

[Stephen Finucane]

On Tue, 2017-07-11 at 11:41 -0700, Sean Farley wrote:
> In a following patch, we'll use this method in another function.
> 
> Signed-off-by: Sean Farley <sean at farley.io>

I merged the next two patches with this one (with some slight changes), and
renamed the patch. For this aspect though:

Reviewed-by: Stephen Finucane <stephen at that.guru>