ufs_trunc_...indirect(): pass the array of indices instead of offsets

rather than bitslicing the offset just formed as sum of shifted indices,
pass the array of those indices itself.  NULL is used as equivalent
of "all zeroes" (== free the entire branch).

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --cc fs/ufs/inode.c
Simple merge