Change configure.in to note that since we are using expr(1)'s regex match command, the entries in template/.similar can really be regular expressions.  This isn't a new feature, just an observation of what the code already did.
Change configure.in to note that since we are using expr(1)'s regex match
command, the entries in template/.similar can really be regular
expressions.  This isn't a new feature, just an observation of what the
code already did.

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