Have BCC echo output "" using "", rather than \"\" as earlier reported. Backpatch to 8.1.X.
Have BCC echo output "" using "", rather than \"\" as earlier reported.
Backpatch to 8.1.X.

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