pry/pry — Issue #381: play -h and cat -h are broken
Author: banister
Created: 2011-12-20 09:27:45+00:00
State: open
Labels: bug

Also check for other potentially broken commands!

```
[14] (pry) main: 0> cat -h
ArgumentError: no id given
from /Users/john/.rvm/gems/ruby-1.9.3-p0/gems/slop-2.4.2/lib/slop.rb:705:in `method_missing'
[15] (pry) main: 0> play -h
ArgumentError: no id given
from /Users/john/.rvm/gems/ruby-1.9.3-p0/gems/slop-2.4.2/lib/slop.rb:705:in `method_missing'
[16] (pry) main: 0>
```

possibly due to this:

```
76: opt.on :h, :help, "This message." do
=>77: output.puts opt
78: end
```

should instead be `output.puts opt.to_s`