[master] bab71a1 Further improve do_stream documentation

[Nils Goroll]

commit bab71a1ace9fb5236e68a481c14179895d7bc91d
Author: Nils Goroll <nils.goroll at uplex.de>
Date:   Tue Aug 23 15:43:22 2016 +0200

    Further improve do_stream documentation
    
    Thanks, Dridi
    
    Addresses question in #2038

diff --git a/lib/libvcc/generate.py b/lib/libvcc/generate.py
index 87bf387..3104e00 100755
--- a/lib/libvcc/generate.py
+++ b/lib/libvcc/generate.py
@@ -506,8 +506,9 @@ sp_variables = [
 		('backend_response', 'backend_error'),
 		('backend_response', 'backend_error'), """
 		Deliver the object to the client while fetching the whole
-		object into varnish. If this request is pass'ed it will not be
-		stored in memory.
+		object into varnish. For uncacheable objects, storage for
+		parts of the body which have been sent to the client may
+		get freed early, depending on the storage engine used.
 		"""
 	),
 	('beresp.do_gzip',