Fix comment about which version had BACKUP METHOD line in backup_lable, again. It was invalidated again by Fujii's patch to 9.1.
Fix comment about which version had BACKUP METHOD line in backup_lable, again.
It was invalidated again by Fujii's patch to 9.1.

oberstet/postgres-xl,kmjungersen/PostgresXL,Postgres-XL/Postgres-XL,xinzweb/gpdb,techdragon/Postgres-XL,greenplum-db/gpdb,adam8157/gpdb,pavanvd/postgres-xl,greenplum-db/gpdb,yazun/postgres-xl,ashwinstar/gpdb,xinzweb/gpdb,ovr/postgres-xl,50wu/gpdb,arcivanov/postgres-xl,techdragon/Postgres-XL,xinzweb/gpdb,postmind-net/postgres-xl,xinzweb/gpdb,postmind-net/postgres-xl,jmcatamney/gpdb,lisakowen/gpdb,techdragon/Postgres-XL,ashwinstar/gpdb,ashwinstar/gpdb,ashwinstar/gpdb,ashwinstar/gpdb,kmjungersen/PostgresXL,techdragon/Postgres-XL,ashwinstar/gpdb,tpostgres-projects/tPostgres,zeroae/postgres-xl,zeroae/postgres-xl,arcivanov/postgres-xl,adam8157/gpdb,snaga/postgres-xl,arcivanov/postgres-xl,tpostgres-projects/tPostgres,adam8157/gpdb,xinzweb/gpdb,lisakowen/gpdb,xinzweb/gpdb,adam8157/gpdb,50wu/gpdb,jmcatamney/gpdb,arcivanov/postgres-xl,jmcatamney/gpdb,jmcatamney/gpdb,ashwinstar/gpdb,oberstet/postgres-xl,greenplum-db/gpdb,adam8157/gpdb,snaga/postgres-xl,postmind-net/postgres-xl,jmcatamney/gpdb,kmjungersen/PostgresXL,arcivanov/postgres-xl,yazun/postgres-xl,oberstet/postgres-xl,greenplum-db/gpdb,Postgres-XL/Postgres-XL,yazun/postgres-xl,snaga/postgres-xl,snaga/postgres-xl,jmcatamney/gpdb,ovr/postgres-xl,tpostgres-projects/tPostgres,lisakowen/gpdb,arcivanov/postgres-xl,xinzweb/gpdb,pavanvd/postgres-xl,ovr/postgres-xl,lisakowen/gpdb,lisakowen/gpdb,lisakowen/gpdb,lisakowen/gpdb,zeroae/postgres-xl,zeroae/postgres-xl,50wu/gpdb,zeroae/postgres-xl,xinzweb/gpdb,tpostgres-projects/tPostgres,postmind-net/postgres-xl,50wu/gpdb,oberstet/postgres-xl,jmcatamney/gpdb,yazun/postgres-xl,50wu/gpdb,greenplum-db/gpdb,adam8157/gpdb,50wu/gpdb,lisakowen/gpdb,techdragon/Postgres-XL,Postgres-XL/Postgres-XL,50wu/gpdb,ovr/postgres-xl,adam8157/gpdb,oberstet/postgres-xl,greenplum-db/gpdb,pavanvd/postgres-xl,tpostgres-projects/tPostgres,Postgres-XL/Postgres-XL,greenplum-db/gpdb,adam8157/gpdb,jmcatamney/gpdb,pavanvd/postgres-xl,greenplum-db/gpdb,ovr/postgres-xl,yazun/postgres-xl,ashwinstar/gpdb,Postgres-XL/Postgres-XL,kmjungersen/PostgresXL,kmjungersen/PostgresXL,snaga/postgres-xl,postmind-net/postgres-xl,50wu/gpdb,pavanvd/postgres-xl