fstests: fix -remote flag to override test target
fstests: fix -remote flag to override test target

B4dM4n/rclone,olihey/rclone,seuffert/rclone,seuffert/rclone,ncw/rclone,B4dM4n/rclone,yonjah/rclone,B4dM4n/rclone,yonjah/rclone,seuffert/rclone,yonjah/rclone,yonjah/rclone,olihey/rclone,ncw/rclone,B4dM4n/rclone,ncw/rclone,ncw/rclone,olihey/rclone,seuffert/rclone,olihey/rclone