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tail: unnecessary pipe call #12413

@oech3

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@oech3
> strace -c -e pipe,pipe2 tail -c +1 /dev/null|echo

% time     seconds  usecs/call     calls    errors syscall
------ ----------- ----------- --------- --------- ----------------
100.00    0.000016          16         1           pipe2

I considered that this can be fixed by same way with #12358 . But it seems not true...

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