Guard against duplicate IDs in input file in SortTocFromFile(). Per report from Brian Hackett.
Guard against duplicate IDs in input file in SortTocFromFile().
Per report from Brian Hackett.

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