Remove obsolete comment about VACUUM FULL: it takes buffer content locks now, and must do so to ensure bgwriter doesn't write a page that is in process of being compacted.
Remove obsolete comment about VACUUM FULL: it takes buffer content locks
now, and must do so to ensure bgwriter doesn't write a page that is in
process of being compacted.

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