Fixes for MONEY type using locale

In looking at the use of the thousands separator in formatting.c and
psql/print.c, I now see similar problems with the MONEY type, namely
that if the thousands separator is "" it is set to "," even if the
decimal separator is ",".

The attached patch fixes this.

I also removed a ssymbol test because ssymbol will never be \0 based on
the code. Also, what does this do:

if (buf[LAST_DIGIT] == ',')
buf[LAST_DIGIT] = buf[LAST_PAREN];

--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://postgres.enterprisedb.com

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