Some minor changes to the `patch_vary_headers` function:  * Replaced a for loop with a list comprehension.  * Used a set instead of a dict with dummy values.  * Used a bit more readable variable names.
Some minor changes to the `patch_vary_headers` function:
 * Replaced a for loop with a list comprehension.
 * Used a set instead of a dict with dummy values.
 * Used a bit more readable variable names.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@6698 bcc190cf-cafb-0310-a4f2-bffc1f526a37

--HG--
extra : convert_revision : 84a8118d0b30ad950906935fbcd9586b4480c749

heracek/django-nonrel,adieu/django-nonrel,heracek/django-nonrel,heracek/django-nonrel,adieu/django-nonrel,adieu/django-nonrel