Обсуждение: pgsql: Adjust psql to use pg_get_triggerdef(pretty=true) to remove extra

Log Message:
-----------
Adjust psql to use pg_get_triggerdef(pretty=true) to remove extra ()'s
from description of triggers with WHEN clause.

Thanks to Brad T. Sliger for the review.

Modified Files:
--------------
    pgsql/src/backend/utils/adt:
        ruleutils.c (r1.319 -> r1.320)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/ruleutils.c?r1=1.319&r2=1.320)
    pgsql/src/bin/psql:
        describe.c (r1.234 -> r1.235)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/bin/psql/describe.c?r1=1.234&r2=1.235)
    pgsql/src/test/regress/expected:
        triggers.out (r1.30 -> r1.31)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/expected/triggers.out?r1=1.30&r2=1.31)
    pgsql/src/test/regress/sql:
        triggers.sql (r1.18 -> r1.19)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/sql/triggers.sql?r1=1.18&r2=1.19)