Remove block around while; it is a Ruby keyword (style).
Prefer english Ruby globals to Perl shorthand equivs (style).
Fix Array inner spacing (style).
Fix spacing inside block braces (style).
Rename Busser#is_chef_data_dir? to #chef_data_dir?.
Reduce ABC complexity of Generator::Init#init.
Use a higher-precendence || to replace an or in Provisioner::ChefBase.
Remove private modifier in Instance::FSM as it's already private.
Rename params on a couple of #inject methods, borderline silliness.
Normalize String formatting to use Kernel#format (style).
Fix indentation of case in Provisioner::ChefBase (style).
Renamed privates Command::Base#get_all_instances/get_filtered_instances.
Renamed private Command::List#set_color to #colorize.