Add mention of init -W flag for security.
Add mention of init -W flag for security.

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