Enabled regression driver to run without PGLIB set.
Enabled regression driver to run without PGLIB set.

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