Add KOI8/WIN/ALT to set client_encoding command help
Add KOI8/WIN/ALT to set client_encoding command help

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