pgsql: Modify pg_standby, pgbench, and pg_upgrade manual pages to be

Log Message:
-----------
Modify pg_standby, pgbench, and pg_upgrade manual pages to be consistent
in their display of command-line options with other client applications.

Modified Files:
--------------
    pgsql/contrib/pg_upgrade:
        option.c (r1.4 -> r1.5)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/contrib/pg_upgrade/option.c?r1=1.4&r2=1.5)
    pgsql/doc/src/sgml:
        oid2name.sgml (r1.7 -> r1.8)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/oid2name.sgml?r1=1.7&r2=1.8)
        pgbench.sgml (r1.15 -> r1.16)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/pgbench.sgml?r1=1.15&r2=1.16)
        pgstandby.sgml (r2.10 -> r2.11)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/pgstandby.sgml?r1=2.10&r2=2.11)
        pgupgrade.sgml (r1.11 -> r1.12)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/pgupgrade.sgml?r1=1.11&r2=1.12)