TAS code originally written for s390 (32-bit) does not work for s390x (64-bit).  Fix it.  Per report from Permaine Cheung.
TAS code originally written for s390 (32-bit) does not work for s390x
(64-bit).  Fix it.  Per report from Permaine Cheung.

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