paycheck: refined default metadata signature logic
We now only discover and use a default metadata signature when check is
actually triggered and a public key provided; otherwise, we could be
forcing the check to fail. This also avoids unnecessary output and
directs informational output to stderr.
BUG=chromium:238507
TEST=Unit/integration tests pass
Change-Id: I39df4060afd12a5d54869a6803141bc3e0d2f89b
Reviewed-on: https://gerrit.chromium.org/gerrit/50138
Reviewed-by: Gilad Arnold <garnold@chromium.org>
Tested-by: Gilad Arnold <garnold@chromium.org>
Commit-Queue: David James <davidjames@chromium.org>
1 file changed
