Fixed django.utils.httpwrappers call in docs/outputting_pdf.txt

git-svn-id: http://code.djangoproject.com/svn/django/trunk@3299 bcc190cf-cafb-0310-a4f2-bffc1f526a37

docs/outputting_pdf.txt

@@ -110,7 +110,7 @@ efficient. Here's the above "Hello World" example rewritten to use
 
     from cStringIO import StringIO
     from reportlab.pdfgen import canvas
-    from django.utils.httpwrappers import HttpResponse
+    from django.http import HttpResponse
 
     def some_view(request):
         # Create the HttpResponse object with the appropriate PDF headers.