[BusyBox] tar stdin problems

[Michael Sternberg]

Last CVS version of busybox (2002.11.12-10:51+0000)

~> tar zxvf test.tar.gz
first.file
second.file
third.file
tar: Short read

~> gunzip -c test.tar.gz | tar xv
first.file
second.file
third.file
tar: Short read

~> gunzip test.tar.gz && tar xvf test.tar
~> echo $?
0

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