Exclude out-of-place format setting error raising from coverage
Exclude out-of-place format setting error raising from coverage

'json' and 'der' are the supported formats. There's a friendly
error message if that setting does not match for some reason,
to simplify debugging, but it's not an expected error condition.

awwad/uptane,uptane/uptane,awwad/uptane,uptane/uptane