Added comment to readline defines.
Added comment to readline defines.

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