[GRASS-dev] need update to core.create_location

[Paul Kelly]

Glynn Clements wrote:
>
> Consider whether the existing option should be renamed to datum_trans=.
> The abbreviation rules in 7.0 should accept datumtrans= as an
> abbreviation, but will also accept e.g. dt= or dtrans=.

Sounds like a good idea to me. Since we're breaking compatibility with 
the scripts that used datum= instead of datumtrans= so that they will 
need updated anyway, it seems like a good time to make this further 
change to make things neater.

Paul