Thread: pgsql: Eliminate a gratuitously different wording of the 'cannot use

Log Message:
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Eliminate a gratuitously different wording of the 'cannot use aggregate function in check constraint' error message.

Modified Files:
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    pgsql/src/backend/commands:
        typecmds.c (r1.90 -> r1.91)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/commands/typecmds.c.diff?r1=1.90&r2=1.91)