Update handling of backslashes, and pg_user dump.
Update handling of backslashes, and pg_user dump.

kaknikhil/gpdb,kaknikhil/gpdb,pavanvd/postgres-xl,lisakowen/gpdb,kmjungersen/PostgresXL,jmcatamney/gpdb,atris/gpdb,techdragon/Postgres-XL,rvs/gpdb,Chibin/gpdb,cjcjameson/gpdb,tangp3/gpdb,arcivanov/postgres-xl,ahachete/gpdb,50wu/gpdb,janebeckman/gpdb,Postgres-XL/Postgres-XL,Quikling/gpdb,xuegang/gpdb,jmcatamney/gpdb,edespino/gpdb,CraigHarris/gpdb,adam8157/gpdb,snaga/postgres-xl,rubikloud/gpdb,randomtask1155/gpdb,lisakowen/gpdb,pavanvd/postgres-xl,yazun/postgres-xl,50wu/gpdb,xuegang/gpdb,ashwinstar/gpdb,50wu/gpdb,lintzc/gpdb,Chibin/gpdb,lintzc/gpdb,adam8157/gpdb,foyzur/gpdb,cjcjameson/gpdb,rvs/gpdb,foyzur/gpdb,ovr/postgres-xl,zaksoup/gpdb,adam8157/gpdb,lisakowen/gpdb,ahachete/gpdb,lintzc/gpdb,ashwinstar/gpdb,rubikloud/gpdb,chrishajas/gpdb,adam8157/gpdb,Postgres-XL/Postgres-XL,foyzur/gpdb,rubikloud/gpdb,cjcjameson/gpdb,greenplum-db/gpdb,randomtask1155/gpdb,kaknikhil/gpdb,xuegang/gpdb,atris/gpdb,yazun/postgres-xl,zaksoup/gpdb,Quikling/gpdb,zeroae/postgres-xl,lpetrov-pivotal/gpdb,Postgres-XL/Postgres-XL,Chibin/gpdb,techdragon/Postgres-XL,cjcjameson/gpdb,arcivanov/postgres-xl,yuanzhao/gpdb,xuegang/gpdb,arcivanov/postgres-xl,yuanzhao/gpdb,oberstet/postgres-xl,lisakowen/gpdb,rvs/gpdb,randomtask1155/gpdb,edespino/gpdb,kaknikhil/gpdb,tangp3/gpdb,techdragon/Postgres-XL,randomtask1155/gpdb,Quikling/gpdb,rvs/gpdb,zeroae/postgres-xl,xinzweb/gpdb,zeroae/postgres-xl,Postgres-XL/Postgres-XL,foyzur/gpdb,tpostgres-projects/tPostgres,xuegang/gpdb,zaksoup/gpdb,tangp3/gpdb,yuanzhao/gpdb,randomtask1155/gpdb,pavanvd/postgres-xl,0x0FFF/gpdb,Quikling/gpdb,xinzweb/gpdb,cjcjameson/gpdb,edespino/gpdb,xinzweb/gpdb,ahachete/gpdb,Chibin/gpdb,lintzc/gpdb,royc1/gpdb,xuegang/gpdb,lpetrov-pivotal/gpdb,CraigHarris/gpdb,postmind-net/postgres-xl,Chibin/gpdb,xuegang/gpdb,foyzur/gpdb,zaksoup/gpdb,edespino/gpdb,edespino/gpdb,CraigHarris/gpdb,ahachete/gpdb,greenplum-db/gpdb,ahachete/gpdb,lisakowen/gpdb,techdragon/Postgres-XL,janebeckman/gpdb,janebeckman/gpdb,janebeckman/gpdb,chrishajas/gpdb,rvs/gpdb,yuanzhao/gpdb,zaksoup/gpdb,greenplum-db/gpdb,oberstet/postgres-xl,xuegang/gpdb,royc1/gpdb,kmjungersen/PostgresXL,kaknikhil/gpdb,rubikloud/gpdb,ahachete/gpdb,cjcjameson/gpdb,janebeckman/gpdb,postmind-net/postgres-xl,lintzc/gpdb,tpostgres-projects/tPostgres,foyzur/gpdb,chrishajas/gpdb,yuanzhao/gpdb,pavanvd/postgres-xl,rvs/gpdb,CraigHarris/gpdb,royc1/gpdb,postmind-net/postgres-xl,kaknikhil/gpdb,lpetrov-pivotal/gpdb,adam8157/gpdb,CraigHarris/gpdb,50wu/gpdb,Quikling/gpdb,lintzc/gpdb,edespino/gpdb,atris/gpdb,cjcjameson/gpdb,atris/gpdb,snaga/postgres-xl,adam8157/gpdb,janebeckman/gpdb,royc1/gpdb,rvs/gpdb,ashwinstar/gpdb,yuanzhao/gpdb,tpostgres-projects/tPostgres,edespino/gpdb,chrishajas/gpdb,oberstet/postgres-xl,0x0FFF/gpdb,adam8157/gpdb,ovr/postgres-xl,kaknikhil/gpdb,50wu/gpdb,yazun/postgres-xl,oberstet/postgres-xl,yazun/postgres-xl,rubikloud/gpdb,tangp3/gpdb,zaksoup/gpdb,kaknikhil/gpdb,kaknikhil/gpdb,xinzweb/gpdb,CraigHarris/gpdb,Chibin/gpdb,rubikloud/gpdb,yuanzhao/gpdb,CraigHarris/gpdb,atris/gpdb,randomtask1155/gpdb,tangp3/gpdb,oberstet/postgres-xl,ashwinstar/gpdb,rvs/gpdb,randomtask1155/gpdb,kmjungersen/PostgresXL,jmcatamney/gpdb,tangp3/gpdb,jmcatamney/gpdb,adam8157/gpdb,ahachete/gpdb,Quikling/gpdb,tangp3/gpdb,janebeckman/gpdb,Postgres-XL/Postgres-XL,lintzc/gpdb,cjcjameson/gpdb,0x0FFF/gpdb,atris/gpdb,edespino/gpdb,kmjungersen/PostgresXL,yuanzhao/gpdb,lisakowen/gpdb,postmind-net/postgres-xl,janebeckman/gpdb,postmind-net/postgres-xl,ahachete/gpdb,jmcatamney/gpdb,greenplum-db/gpdb,Quikling/gpdb,jmcatamney/gpdb,Chibin/gpdb,CraigHarris/gpdb,janebeckman/gpdb,greenplum-db/gpdb,kaknikhil/gpdb,lintzc/gpdb,0x0FFF/gpdb,chrishajas/gpdb,foyzur/gpdb,rubikloud/gpdb,tpostgres-projects/tPostgres,lisakowen/gpdb,janebeckman/gpdb,techdragon/Postgres-XL,jmcatamney/gpdb,rvs/gpdb,tpostgres-projects/tPostgres,ashwinstar/gpdb,xinzweb/gpdb,lpetrov-pivotal/gpdb,lintzc/gpdb,edespino/gpdb,lpetrov-pivotal/gpdb,lisakowen/gpdb,royc1/gpdb,Quikling/gpdb,zaksoup/gpdb,lpetrov-pivotal/gpdb,yuanzhao/gpdb,tangp3/gpdb,xinzweb/gpdb,edespino/gpdb,royc1/gpdb,royc1/gpdb,royc1/gpdb,arcivanov/postgres-xl,ovr/postgres-xl,chrishajas/gpdb,cjcjameson/gpdb,arcivanov/postgres-xl,50wu/gpdb,ovr/postgres-xl,Chibin/gpdb,greenplum-db/gpdb,Quikling/gpdb,foyzur/gpdb,50wu/gpdb,atris/gpdb,atris/gpdb,chrishajas/gpdb,xuegang/gpdb,0x0FFF/gpdb,snaga/postgres-xl,CraigHarris/gpdb,Quikling/gpdb,Chibin/gpdb,50wu/gpdb,0x0FFF/gpdb,yazun/postgres-xl,0x0FFF/gpdb,randomtask1155/gpdb,snaga/postgres-xl,xinzweb/gpdb,snaga/postgres-xl,cjcjameson/gpdb,xinzweb/gpdb,ashwinstar/gpdb,jmcatamney/gpdb,rvs/gpdb,pavanvd/postgres-xl,0x0FFF/gpdb,greenplum-db/gpdb,kmjungersen/PostgresXL,ashwinstar/gpdb,zeroae/postgres-xl,chrishajas/gpdb,arcivanov/postgres-xl,Chibin/gpdb,rubikloud/gpdb,zeroae/postgres-xl,lpetrov-pivotal/gpdb,lpetrov-pivotal/gpdb,yuanzhao/gpdb,zaksoup/gpdb,greenplum-db/gpdb,ashwinstar/gpdb,ovr/postgres-xl