This function has multiple conditional branches, which makes it harder
to see at a glance whether authConfig may be partially populated. This
patch instead returns a fresh instance for error returns to prevent any
confusion.
It also removes the named output variables, as they're now no longer used,
and the returned types should already be descriptive enough to understand
what's returned.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
3a8485085d