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[Brian Yennie]

Ah, yes- I guess it's all in our different assumption about the data 
format =). I assumed that all of the first words were already grouped 
together... but you're right- my version was grouping the first item 
and then sorting the second.

So if you _want_ the first items grouped, it'll do that for you- 
otherwise, the "scripted" solution is better.

With that said, it would be nice if Rev natively supported multiple 
key, stable, and grouped sorts!

> I don't know if that quite gets it .... if the input were
> IPAE 1
> LAG 2
> IPAE 3
> LAG 4
>
> then your code would give
> IPAE 1
> IPAE 3
> LAG 2
> LAG 4
>
> while the non-Rev-sorting versions would have kept the data unchanged 
> (they preserved blocks of lines with the same first item, rather than 
> actually sorted on it).