~/w/chef-repo git:master ❯❯❯ knife bootstrap 1.2.3.4 -VV                                     ⏎
DEBUG: Using configuration from /Users/jyuan/workspace/chef-repo/.chef/knife.rb
DEBUG: Looking for bootstrap template in /Users/jyuan/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/chef-10.24.0/lib/chef/knife/bootstrap
DEBUG: Found bootstrap template in /Users/jyuan/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/chef-10.24.0/lib/chef/knife/bootstrap
Bootstrapping Chef on 1.2.3.4
DEBUG: Adding 1.2.3.4
ERROR: RegexpError: end pattern with unmatched parenthesis: /^(yone,$/i