Minor consistency improvement to the documentation on array functions.
Minor consistency improvement to the documentation on array functions.

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