Variadic parameter of length 1

[Dicebot via Digitalmars-d-learn]

On Wednesday, 20 August 2014 at 15:34:30 UTC, Dominikus Dittes 
Scherkl wrote:
> And why historical? Is that not necessary anymore? What better 
> solution is there today?

Historical in a sense that distinct "can be anything" template 
parameter is probably a better approach but it is too late to 
change such core language part.