Fix a probably-harmless read of uninitialized memory in mkdir_p(), to silence a valgrind warning.
Fix a probably-harmless read of uninitialized memory in mkdir_p(), to
silence a valgrind warning.

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