TODO

   1 1.      Fix the multi-volume problem (is there one after all?, I could not
   2         reproduce it and some people told me that multi-volume dumps were Ok).
   3
   4 2.      Make dump honor the no-dump attribute on directories.  Currently, it
   5         honours it only on files.  This means that a directory flagged with
   6         the no-dump attribute will be dumped if it contains a file without
   7         the no-dump flag.
   8
   9 3.      Change the way rdump and rrestore call rmt.  Currently, rcmd() is used
  10         but it may be better to call rsh.  I have to look at the GNU tar code.
  11
  12 4.      Make dump able to backup several directories and/or files in one
  13         invocation, like the SunOS version.