* Improved error checking and diagnostics
* Fixed CAN-1999-1572
* Allow to use --sparse in both copy-in and copy-pass.
* Fix bug that eventually caused copying out the same hard-linked file
several times to archive.
From: Rui Reis
cpio used a 0 umask when creating files using the -O (archive) or
-F options, which created the files with mode 0666 and allowed local
users to read or overwrite those files. (CAN-1999-1572)
