Make the default `payload_filename` be None.

This is a speculative fix to address ongoing failures in the lab.
It appears that the standard provisioning flow is passing a
"payload_filename" parameter that's an empty string instead of None.
That's causing the AU EndToEnd test flow to trigger, causing failures.


Change-Id: I142aa0c24b1a2305c51fae0a78762e0c92546792
Tested-by: Richard Barnette <>
Reviewed-by: Richard Barnette <>
1 file changed