aca8457d34
Use move construction to essentially pass through the string returned by `Loggable::logPrefix()` to avoid an unnecessary copy. Signed-off-by: Barnabás Pőcze <pobrn@protonmail.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>