[BusyBox] hard link fix for tar

[Bart Visscher]

Hi,

I found a problem in the tar hard link handling, it remembers the hard 
link while the GNU tar does not. Attached patch should fix it.

Example:
$ touch file1
$ ln file1 file2
$ ls -l file*
$ ls -il file*
   14734 -rw-r--r--    2 magick   magick          0 Jul 19 19:14 file1
   14734 -rw-r--r--    2 magick   magick          0 Jul 19 19:14 file2
$ tar cvf test.tar --exclude=file1 file*
file2
$ tar tlvf test.tar -rw-r--r-- magick/magick     0 2002-07-19 19:14:39 
file2
$ echo file1 > exclude
$ busybox tar -c -X exclude -f test.tar file*
$ tar tlvf test.tar tar: Record size = 3 blocks
-rw-r--r-- magick/magick     0 2002-07-19 19:14:39 file2 link to file1

Bart
-- 
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Watching a bus-load of lawyers plunge off a cliff. With five empty seats.
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