Have psql display names and OUT/INOUT in \df output

Folks,

This patch makes psql's \df display functions with the names of
parameters and OUT/INOUT if appropriate.  Should there be a regression
test for this?  A doc patch?

Cheers,
D
--
David Fetter <david@fetter.org> http://fetter.org/
phone: +1 415 235 3778        AIM: dfetter666
                              Skype: davidfetter

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