no need for `each_pair`; just `map`?

```ruby
1.9.3-p327 :010 > d = { '1' => 'one', '2' => 'two' }
1.9.3-p327 :011 > d.map { |k,v| "#{k} == #{v}" }
 => ["1 == one", "2 == two"]
1.9.3-p327 :012 > d.each_pair.map { |k,v| "#{k} == #{v}" }
 => ["1 == one", "2 == two"]
```