refactor content_tag_for helper

- do not use merge! just for 2 values
- there is no need to check block arity

1 files changed, 3 insertions, 3 deletions

diff --git a/actionpack/lib/action_view/helpers/record_tag_helper.rb b/actionpack/lib/action_view/helpers/record_tag_helper.rb
index 1a15459406..9b35f076e5 100644
--- a/actionpack/lib/action_view/helpers/record_tag_helper.rb
+++ b/actionpack/lib/action_view/helpers/record_tag_helper.rb
@@ -94,10 +94,10 @@ module ActionView
         # for each record.
         def content_tag_for_single_record(tag_name, record, prefix, options, &block)
           options = options ? options.dup : {}
-          options.merge!(:class => "#{dom_class(record, prefix)} #{options[:class]}".rstrip, :id => dom_id(record, prefix))
+          options[:class] = "#{dom_class(record, prefix)} #{options[:class]}".rstrip
+          options[:id]    = dom_id(record, prefix)
 
-          content = block.arity == 0 ? capture(&block) : capture(record, &block)
-          content_tag(tag_name, content, options)
+          content_tag(tag_name, capture(record, &block), options)
         end
     end
   end