Log Message:
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Fix psql ref typo.
Andreas Seltenreich
Modified Files:
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pgsql/doc/src/sgml/ref:
psql-ref.sgml (r1.151 -> r1.152)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/psql-ref.sgml.diff?r1=1.151&r2=1.152)