An object server unit test was seen to fail returning a 409 when a 204 was expected. I cannot see the bug, so this patch adds some failure context to add illumination if/when it fails again. Change-Id: I45327cb5a56a87b8f6b9e971232fdce3b3f4bcb8 Related-Bug: #2131684 Signed-off-by: Alistair Coles <alistairncoles@gmail.com>