pg_upgrade: fix initialization of thread argument Reorder initialization of thread argument marker to it happens before reap_child() is called. Backpatch to 9.3.
pg_upgrade: fix initialization of thread argument
Reorder initialization of thread argument marker to it happens before
reap_child() is called.
Backpatch to 9.3.

50wu/gpdb,Postgres-XL/Postgres-XL,techdragon/Postgres-XL,Postgres-XL/Postgres-XL,jmcatamney/gpdb,greenplum-db/gpdb,ashwinstar/gpdb,adam8157/gpdb,50wu/gpdb,ovr/postgres-xl,lisakowen/gpdb,techdragon/Postgres-XL,adam8157/gpdb,greenplum-db/gpdb,yazun/postgres-xl,oberstet/postgres-xl,ovr/postgres-xl,greenplum-db/gpdb,jmcatamney/gpdb,zeroae/postgres-xl,ashwinstar/gpdb,adam8157/gpdb,adam8157/gpdb,xinzweb/gpdb,ovr/postgres-xl,yazun/postgres-xl,oberstet/postgres-xl,ashwinstar/gpdb,techdragon/Postgres-XL,adam8157/gpdb,50wu/gpdb,oberstet/postgres-xl,pavanvd/postgres-xl,ashwinstar/gpdb,ovr/postgres-xl,techdragon/Postgres-XL,pavanvd/postgres-xl,zeroae/postgres-xl,ashwinstar/gpdb,zeroae/postgres-xl,ashwinstar/gpdb,Postgres-XL/Postgres-XL,ovr/postgres-xl,yazun/postgres-xl,Postgres-XL/Postgres-XL,50wu/gpdb,zeroae/postgres-xl,xinzweb/gpdb,xinzweb/gpdb,pavanvd/postgres-xl,greenplum-db/gpdb,xinzweb/gpdb,lisakowen/gpdb,ashwinstar/gpdb,greenplum-db/gpdb,50wu/gpdb,adam8157/gpdb,greenplum-db/gpdb,oberstet/postgres-xl,oberstet/postgres-xl,xinzweb/gpdb,lisakowen/gpdb,50wu/gpdb,yazun/postgres-xl,greenplum-db/gpdb,lisakowen/gpdb,jmcatamney/gpdb,50wu/gpdb,techdragon/Postgres-XL,lisakowen/gpdb,jmcatamney/gpdb,Postgres-XL/Postgres-XL,pavanvd/postgres-xl,yazun/postgres-xl,jmcatamney/gpdb,pavanvd/postgres-xl,zeroae/postgres-xl,adam8157/gpdb,xinzweb/gpdb,jmcatamney/gpdb,jmcatamney/gpdb,lisakowen/gpdb,lisakowen/gpdb,xinzweb/gpdb,adam8157/gpdb,jmcatamney/gpdb,greenplum-db/gpdb,50wu/gpdb,ashwinstar/gpdb,lisakowen/gpdb,xinzweb/gpdb