Not clear to me why curly brackets should be treated differently than pr...

@bschwartz @MaxPower15 @jamesfzhang @maryschmidt Anybody have thoughts on this?
Maybe I'm used to staring at Ruby that follows this guide, but this looks right to me:

```ruby
[1, 2, 3].map { |e| e * 2 }.select { |e| e % 3 == 0 }
```

I think the reason people like this are it treats `{` and `}` just like `do` and `end`, to which they are equivalent.