Fixed #16094 -- Added missing colon in custom permissions docs.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@16836 bcc190cf-cafb-0310-a4f2-bffc1f526a37

docs/topics/auth.txt

@@ -1394,7 +1394,7 @@ The only thing this does is create those extra permissions when you run
 value of these permissions when an user is trying to access the functionality
 provided by the application (viewing tasks, changing the status of tasks,
 closing tasks.) Continuing the above example, the following checks if a user may
-view tasks:
+view tasks::
 
     user.has_perm('app.view_task')
 
@@ -1753,4 +1753,4 @@ Handling object permissions
 Django's permission framework has a foundation for object permissions, though
 there is no implementation for it in the core. That means that checking for
 object permissions will always return ``False`` or an empty list (depending on
-the check performed).
+the check performed).
\ No newline at end of file