This fixes three minor typos in hba.c.
This fixes three minor typos in hba.c.

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Alvaro Herrera (<alvherre[a]dcc.uchile.cl>)

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