swift: note that tenant isn't optional for > v1 auth - fixes #563
swift: note that tenant isn't optional for > v1 auth - fixes #563

arcimboldo/rclone,kynikos/rclone,kynikos/rclone,seuffert/rclone,olihey/rclone,olihey/rclone,B4dM4n/rclone,ncw/rclone,olihey/rclone,arcimboldo/rclone,jackschmidt/rclone,yonjah/rclone,yonjah/rclone,ncw/rclone,B4dM4n/rclone,kynikos/rclone,B4dM4n/rclone,jackschmidt/rclone,olihey/rclone,jackschmidt/rclone,jackschmidt/rclone,B4dM4n/rclone,kynikos/rclone,ncw/rclone,seuffert/rclone,yonjah/rclone,arcimboldo/rclone,ncw/rclone,seuffert/rclone,seuffert/rclone,yonjah/rclone,arcimboldo/rclone