pgsql: Doc: remove extra comma in syntax summary for array_fill().

Doc: remove extra comma in syntax summary for array_fill().

Noted by Scott Ure. Back-patch to all supported branches.

Discussion: /messages/by-id/152199346794.4544.1888397173908716912@wrigleys.postgresql.org

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/ee4a2c4a0345f2589ce32b64493b1b14e87f0465

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