bug#32751: split does not break on error from tar

[Alexander Fieroch]

Hi all,

I found a bug in "split".
I want to tar some files but some of them have wrong permissions. tar 
puts out an exit code 2 "Cannot open: Permission denied". That is good 
because in my script I can catch this error and react to this.

$ tar -c -f /tmp/test.tar -C /media/testpath testfile ; echo $?
tar: testfile: Cannot open: Permission denied
tar: Exiting with failure status due to previous errors
2

Unfortunately my tar directory is too big to save it in one file on my 
filesystem that I have to split the archive but doing this "split" does 
not get the error code 2 from tar and does not break as it should:

$ tar -c -f - -C /media/testpath testfile | split - ; echo $?
tar: testfile: Cannot open: Permission denied
tar: Exiting with failure status due to previous errors
0

In the end I got a tar file without files that have no permissions and 
my script does not break because of error code 0.

Thanks!

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Ubuntu 18.04.1
tar 1.29b
coreutils 8.28
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Best regards,
Alexander

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