Fixed #12688 -- Removed typo in manager docs. Thanks, orokusaki for the report and timo for the patch.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@12485 bcc190cf-cafb-0310-a4f2-bffc1f526a37

docs/topics/db/managers.txt

@@ -235,7 +235,7 @@ this base class::
 
     class AbstractBase(models.Model):
         ...
-        objects = CustomerManager()
+        objects = CustomManager()
 
         class Meta:
             abstract = True