Update createuser examples to match the current program behavior, and add an example showing assignment of a password.  Per suggestion from Jari Aalto (via Martin Pitt).
Update createuser examples to match the current program behavior,
and add an example showing assignment of a password.  Per suggestion
from Jari Aalto (via Martin Pitt).

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