Should we have prettier string printing for exceptions and std elemts?

[jmh530]

On Monday, 9 October 2017 at 17:19:42 UTC, Petar Kirov 
[ZombineDev] wrote:
>
> Another point is that if the container contains many elements 
> automatically printing all of them would be ugly, unhelpful and 
> slow, while printing its identity (I think the address of the 
> RefCountedStore doesn't change on reallocation) may be more 
> useful.

This relates to your comment in the bugzilla to format with 
'%5r'. This would be similar to using something like head or tail 
in R and the printing the result. I consider that a separate 
issue. It's really easy to handle this in D with UFCS. In Mir, 
you could do slice.select(5).writefln!"%s".