Add note explaining that multiple prompts for a password are normal behavior when password auth is used.
Add note explaining that multiple prompts for a password are normal
behavior when password auth is used.

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