pgsql: doc: fix CREATE ROLE typo

doc: fix CREATE ROLE typo

This wording typo was added in PG 16.

Reported-by: s.bailey@chorusintel.com

Discussion: /messages/by-id/171150077554.7105.801523271545956671@wrigleys.postgresql.org

Backpatch-through: 16

Branch
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REL_16_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/ca4c60e05f81c57b4d72da867173fc524c76aa71

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