tests/btrfs.c: fix printing struct btrfs_ioctl_clone_range_args
tests/btrfs.c: fix printing struct btrfs_ioctl_clone_range_args

* tests/btrfs.c (btrfs_test_clone_ioctls): Print __u64 members
of struct btrfs_ioctl_clone_range_args using PRI__u64 format.

cuviper/strace,Saruta/strace,Saruta/strace,cuviper/strace,cuviper/strace,Saruta/strace,Saruta/strace,cuviper/strace,cuviper/strace,Saruta/strace