You can check your patches by applying your patch to an different dedicated branch:
<shell>
$ git checkout -b testing_branch
$ git apply --check my_new_patch.diff
</shell>
You can make sure your patches don't add any whitespace by applying it yourself using the --whitespace=error-all option. Make sure you are on your dedicated test branche and:
Now create a ticket with your patch. Go to the "new ticket":http://rails.lighthouseapp.com/projects/8994-ruby-on-rails/tickets/new page at Lighthouse. Fill in a reasonable title and description, remember to attach your patch file, and tag the ticket with the ‘patch’ tag and whatever other subject area tags make sense.