Fix line count error reporting in config files, like pg_hba.conf, per report from Oliver Elphick.
Fix line count error reporting in config files, like pg_hba.conf, per
report from Oliver Elphick.

Backpatch to 7.3.

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