Fix some uses of str[n]casecmp that should be pg_str[n]casecmp, per Magnus.
Fix some uses of str[n]casecmp that should be pg_str[n]casecmp,
per Magnus.

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