Change trace_sort to output to the log, rather than the user's terminal.
Change trace_sort to output to the log, rather than the user's terminal.

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