Updated version of src/bin/psql/create_help.pl

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Attached is a rewrite of src/bin/psql/create_help.pl. I
say 'rewrite' because the diff is over twice the size of
the original file. If a diff is still preferred, please
let me know.

I basically just introduced 'use strict', cleaned some things
up, and removed the references to perl 4, which has gone the
way of the dodo (and shame on you if you are still using it :).

Greg Sabino Mullane
greg(at)turnstep(dot)com
PGP Key: 0x14964AC8 200111271612

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