Log Message:
-----------
Update pg_upgrade IMPLEMENTATION doc file to match current 9.0 behavior.
Modified Files:
--------------
pgsql/contrib/pg_upgrade:
IMPLEMENTATION (r1.1 -> r1.2)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/contrib/pg_upgrade/IMPLEMENTATION?r1=1.1&r2=1.2)