pgsql: doc: Fix title markup for AT TIME ZONE and AT LOCAL

doc: Fix title markup for AT TIME ZONE and AT LOCAL

The title for AT TIME ZONE and AT LOCAL was accidentally wrapping the
"and" in the <literal> tag.  Backpatch to v17 where it was introduced
in 97957fdbaa42.

Author: Noboru Saito <noborusai@gmail.com>
Reviewed-by: Daniel Gustafsson <daniel@yesql.se>
Reviewed-by: Tatsuo Ishii <ishii@postgresql.org>
Reviewed-by: Michael Paquier <michael@paquier.xyz>
Discussion: https://postgr.es/m/CAAM3qn+7QUWW9R6_YwPKXmky0xGE4n63U3EsxZeWE_QtogeU8g@mail.gmail.com
Backpatch-through: 17

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/8fcc6487809efa5508a4b70049402236a53be84d

Modified Files
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doc/src/sgml/func.sgml | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)