Cope with configure arguments that contain spaces.
Cope with configure arguments that contain spaces.

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