Remove a space that incorrectly precedes a comma in the PL/pgSQL

documentation.

Michael Fuhr

doc/src/sgml/plpgsql.sgml

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-$PostgreSQL: pgsql/doc/src/sgml/plpgsql.sgml,v 1.82 2005/12/08 18:02:04 momjian Exp $
+$PostgreSQL: pgsql/doc/src/sgml/plpgsql.sgml,v 1.83 2005/12/29 04:02:32 momjian Exp $
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 <chapter id="plpgsql">