Remove incorrect (and ill-advised anyway) pfree's in pg_convert_from and pg_convert_to.  Per bug #3866 from Andrew Gilligan.
Remove incorrect (and ill-advised anyway) pfree's in pg_convert_from and
pg_convert_to.  Per bug #3866 from Andrew Gilligan.

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