Fix erroneous error message printout when a configuration file contains an overlength token.  Printout was always garbage and could dump core entirely :-(.  Per report from Martin Pitt.
Fix erroneous error message printout when a configuration file contains
an overlength token.  Printout was always garbage and could dump core
entirely :-(.  Per report from Martin Pitt.

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