fix comment

Author: johrstrom

lib/bootstrap_form/inputs/inputs_collection.rb

@@ -39,7 +39,7 @@ def form_group_collection_input_options(options, text, obj, index, input_value,
  input_options[:checked] = form_group_collection_input_checked?(checked, obj, input_value)
  end
 
- # add things like 'data-' directives to the HTML
+ # add things like 'data-' attributes to the HTML
  obj.each do |inner_obj|
  input_options.merge!(inner_obj) if inner_obj.is_a?(Hash)
  end if obj.respond_to?(:each)