Fixed #12523 -- Fixed typo in docs/ref/contrib/messages.txt
Fixed #12523 -- Fixed typo in docs/ref/contrib/messages.txt

git-svn-id: 4f9f921b081c523744c7bf24d959a0db39629563@12127 bcc190cf-cafb-0310-a4f2-bffc1f526a37

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