pgsql: Fix description of SQL-standard meaning of CREATE LOCAL TEMP TAB

Fix description of SQL-standard meaning of CREATE LOCAL TEMP TABLE.

I had this slightly wrong, as noted by Noah Misch.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/8b23db944b9d7f051e2f986cc1f55ade82621218

Modified Files
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doc/src/sgml/ref/create_table.sgml |    9 +++++----
1 files changed, 5 insertions(+), 4 deletions(-)