Fix pg_dump for UPDATE policies
Fix pg_dump for UPDATE policies

pg_dump had the wrong character for update and so was failing when
attempts were made to pg_dump databases with UPDATE policies.

Pointed out by Fujii Masao (thanks!)

yazun/postgres-xl,jmcatamney/gpdb,yazun/postgres-xl,ovr/postgres-xl,ovr/postgres-xl,oberstet/postgres-xl,techdragon/Postgres-XL,adam8157/gpdb,50wu/gpdb,xinzweb/gpdb,pavanvd/postgres-xl,adam8157/gpdb,lisakowen/gpdb,lisakowen/gpdb,ashwinstar/gpdb,yazun/postgres-xl,lisakowen/gpdb,jmcatamney/gpdb,pavanvd/postgres-xl,adam8157/gpdb,50wu/gpdb,oberstet/postgres-xl,adam8157/gpdb,jmcatamney/gpdb,jmcatamney/gpdb,ashwinstar/gpdb,Postgres-XL/Postgres-XL,xinzweb/gpdb,techdragon/Postgres-XL,pavanvd/postgres-xl,greenplum-db/gpdb,Postgres-XL/Postgres-XL,xinzweb/gpdb,jmcatamney/gpdb,50wu/gpdb,jmcatamney/gpdb,oberstet/postgres-xl,greenplum-db/gpdb,ashwinstar/gpdb,adam8157/gpdb,techdragon/Postgres-XL,lisakowen/gpdb,techdragon/Postgres-XL,zeroae/postgres-xl,techdragon/Postgres-XL,xinzweb/gpdb,ovr/postgres-xl,adam8157/gpdb,xinzweb/gpdb,zeroae/postgres-xl,yazun/postgres-xl,Postgres-XL/Postgres-XL,ashwinstar/gpdb,50wu/gpdb,ashwinstar/gpdb,xinzweb/gpdb,50wu/gpdb,greenplum-db/gpdb,zeroae/postgres-xl,xinzweb/gpdb,lisakowen/gpdb,adam8157/gpdb,greenplum-db/gpdb,pavanvd/postgres-xl,yazun/postgres-xl,ashwinstar/gpdb,50wu/gpdb,jmcatamney/gpdb,lisakowen/gpdb,xinzweb/gpdb,zeroae/postgres-xl,ashwinstar/gpdb,Postgres-XL/Postgres-XL,jmcatamney/gpdb,ovr/postgres-xl,50wu/gpdb,greenplum-db/gpdb,greenplum-db/gpdb,lisakowen/gpdb,Postgres-XL/Postgres-XL,ashwinstar/gpdb,oberstet/postgres-xl,oberstet/postgres-xl,greenplum-db/gpdb,zeroae/postgres-xl,50wu/gpdb,pavanvd/postgres-xl,greenplum-db/gpdb,ovr/postgres-xl,adam8157/gpdb,lisakowen/gpdb