Corrected another typo in aggregation docs. Thanks to Ivan Sagalaev for the report.
Corrected another typo in aggregation docs. Thanks to Ivan Sagalaev for the report.

git-svn-id: 4f9f921b081c523744c7bf24d959a0db39629563@9752 bcc190cf-cafb-0310-a4f2-bffc1f526a37

bfirsh/django-old,django-nonrel/django-nonrel,sam-tsai/django-old,bfirsh/django-old,alex/django-old,mitsuhiko/django,Smarsh/django,jamespacileo/django-france,disqus/django-old,Smarsh/django,skevy/django,sam-tsai/django-old,disqus/django-old,skevy/django,alex/django-old,jamespacileo/django-france,Smarsh/django,jamespacileo/django-france,django-nonrel/django-nonrel,mitsuhiko/django,Instagram/django,alex/django-old,t11e/django,sam-tsai/django-old,t11e/django,sam-tsai/django-old,Instagram/django,Smarsh/django,mitsuhiko/django,t11e/django,bfirsh/django-old,disqus/django-old,django-nonrel/django-nonrel,Instagram/django,skevy/django