commit 6c635224 upstream.

The current use of /tmp for file lists is insecure.  Put them under
$objtree/debian instead.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Acked-by: maximilian attems <max@stro.at>
Signed-off-by: Michal Marek <mmarek@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>