link to file for commit diff

app/views/commits/_diff.html.haml

@@ -31,6 +31,7 @@
       - if diff.deleted_file
         %strong{:id => "#{diff.b_path}"}= diff.a_path
       - else 
+        = link_to tree_file_project_path(@project, @commit.id, diff.b_path) do
           %strong{:id => "#{diff.b_path}"}= diff.b_path
       %br/
     .diff_file_content