injekt/slop — pull request #81 by kachick (2012-09-16 16:41:38+00:00)
Title: BlockScope of "Slop::Commands#new" is influenced by arity number

Is this expected behavior?

ruby 1.9.3p194 (2012-04-20 revision 35410) [i686-linux]

```ruby
p Slop::Commands.new {||p __id__}.__id__ #=> same
p Slop::Commands.new {|_|p __id__}.__id__ #=> differrent
```