Fixed the "timeuntil" and "timesince" tests so that they don't fail on a machine under heavy load.
Fixed the "timeuntil" and "timesince" tests so that they don't fail on a
machine under heavy load.

--HG--
extra : convert_revision : svn%3Abcc190cf-cafb-0310-a4f2-bffc1f526a37/django/trunk%403188

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