git: a9fc14fbf445 - main - newvers.sh: add support for gitup(1)

[Ed Maste]

> > This fixes the problem at hand,

Thanks for confirming, I've fixed that part now.

> > but a new regression is shown:
> >
> > $ strings kernel | grep 'FreeBSD 13.0-ALPHA1'
> > FreeBSD 13.0-ALPHA1 #47 c256181-gb06e91d1b700: Thu Jan 21 14:31:35 UTC 2021
> >
> > branch name is no longer present.
>
> See the commit message, though I'd argue it's not redundant in a lot of
> local development cases (i.e. anything other than main, stable/*, etc),
> and is actually rather useful.

I agree, and my suggestion is that we restore it unconditionally. I
think it's more confusing without a consistent format / set of
components.