NewLine handling in templates

[Danek Duvall]

On Wed, Dec 14, 2022 at 08:37:21AM -0800, Ernie Rael wrote:

>It turns out I didn't realize that with "-G" there is always two lines 
>per changeset, no matter what's in the template.

You can compact it with `experimental.graphshorten=true,` if you like.  I'd gotten 
used enough to the compactness of `git log --graph` that I found the extra 
vertical space weird, and was glad to find this config option.

Danek