Add hint for "invalid byte sequence for encoding" error message, suggesting review of client_encoding.
Add hint for "invalid byte sequence for encoding" error message,
suggesting review of client_encoding.

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