karnowski/pairhost — pull request #2 by cldwalker (2012-04-26 13:23:08+00:00)
Title: clean error message for status if no pairhost instance exists

Currently I see this if I have no instance:

```sh
$ pairhost status
/Users/me/Developer/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/pairhost-0.0.2/lib/pairhost.rb:22:in `read': No such file or directory - /Users/me/.pairhost/instance (Errno::ENOENT)
from /Users/me/Developer/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/pairhost-0.0.2/lib/pairhost.rb:22:in `instance_id'
from /Users/me/Developer/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/pairhost-0.0.2/lib/pairhost.rb:74:in `fetch'
from /Users/me/Developer/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/pairhost-0.0.2/lib/pairhost.rb:88:in `status'
from /Users/me/Developer/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/thor-0.14.6/lib/thor/task.rb:22:in `run'
from /Users/me/Developer/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/thor-0.14.6/lib/thor/invocation.rb:118:in `invoke_task'
from /Users/me/Developer/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/thor-0.14.6/lib/thor.rb:263:in `dispatch'
from /Users/me/Developer/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/thor-0.14.6/lib/thor/base.rb:389:in `start'
from /Users/me/Developer/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/pairhost-0.0.2/bin/pairhost:6:in `'
from /Users/me/Developer/.rbenv/versions/1.9.3-p194/bin/pairhost:23:in `load'
from /Users/me/Developer/.rbenv/versions/1.9.3-p194/bin/pairhost:23:in `

'
```