pipe(2) on MIPS does some funny, non-standard stuff with it's return
data. This patch implments this unusual handling. Without this patch,
bash closes it's own stdin by mistake and therefore exits immediately
after presenting the prompt.

The LTP test results for the pipe() tests are improved with this patch
as well.


                                 Stuart

Stuart R. Anderson                               anderson@netsweng.com
Network & Software Engineering                   http://www.netsweng.com/
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