bug#51011: [GNU sort] Numerical sort with delimiter may be broken (bug)

[Paul Eggert]

On 10/8/21 7:32 PM, Pádraig Brady wrote:
> it's not a thousands separator, rather a grouping 
> character,
> and groups can be in 2, 3, 4, and even 5.

Sure, but 'sort' could determine the group sizes from the locale, and 
reject digit strings that are formatted improperly according to the 
group-size rules. (Not that I plan to write the code to do that....)