[Bug-cpio] Problem with current dir with cpio -H tar

[q#]

Hi,

Current directory (.) isn't correctly stored with target archive `tar'
and `ustar':

$ ( for i in crc newc odc bin ustar tar
  do
        echo . | cpio -o -H $i | cpio -tv
  done ) 2>&1 | grep -v 'block\(s\|\)$'
                                                      vvv
drwxr-xr-x   2 admin    admin           0 Aug 18 13:25 .
drwxr-xr-x   2 admin    admin           0 Aug 18 13:25 .
drwxr-xr-x   2 admin    admin           0 Aug 18 13:25 .
drwxr-xr-x   2 admin    admin           0 Aug 18 13:25 .
drwxr-xr-x   1 admin    admin           0 Aug 18 13:25 
drwxr-xr-x   1 admin    admin           0 Aug 18 13:25 
                                                      ^^^

As you can see, targets CRC, NEWC, ODC, BIN produce correct archives,
but USTAR and TAR not.

-- 
best regards
q#