gpload: log gpfdist outputs by default
gpload: log gpfdist outputs by default

Which is important for debugging customers' issues. (log level still
matters)

janebeckman/gpdb,Quikling/gpdb,cjcjameson/gpdb,greenplum-db/gpdb,kaknikhil/gpdb,lisakowen/gpdb,yuanzhao/gpdb,ashwinstar/gpdb,lisakowen/gpdb,adam8157/gpdb,ashwinstar/gpdb,50wu/gpdb,rvs/gpdb,yuanzhao/gpdb,rvs/gpdb,xinzweb/gpdb,Chibin/gpdb,greenplum-db/gpdb,Quikling/gpdb,Chibin/gpdb,kaknikhil/gpdb,greenplum-db/gpdb,xinzweb/gpdb,yuanzhao/gpdb,cjcjameson/gpdb,janebeckman/gpdb,cjcjameson/gpdb,greenplum-db/gpdb,yuanzhao/gpdb,edespino/gpdb,50wu/gpdb,janebeckman/gpdb,cjcjameson/gpdb,jmcatamney/gpdb,Chibin/gpdb,edespino/gpdb,lisakowen/gpdb,Chibin/gpdb,greenplum-db/gpdb,xinzweb/gpdb,janebeckman/gpdb,Quikling/gpdb,edespino/gpdb,yuanzhao/gpdb,Quikling/gpdb,kaknikhil/gpdb,Chibin/gpdb,lisakowen/gpdb,ashwinstar/gpdb,rvs/gpdb,rvs/gpdb,rvs/gpdb,Quikling/gpdb,yuanzhao/gpdb,ashwinstar/gpdb,greenplum-db/gpdb,edespino/gpdb,Quikling/gpdb,xinzweb/gpdb,50wu/gpdb,rvs/gpdb,janebeckman/gpdb,Quikling/gpdb,cjcjameson/gpdb,jmcatamney/gpdb,jmcatamney/gpdb,cjcjameson/gpdb,xinzweb/gpdb,janebeckman/gpdb,50wu/gpdb,edespino/gpdb,cjcjameson/gpdb,lisakowen/gpdb,edespino/gpdb,janebeckman/gpdb,greenplum-db/gpdb,kaknikhil/gpdb,cjcjameson/gpdb,Chibin/gpdb,jmcatamney/gpdb,rvs/gpdb,adam8157/gpdb,edespino/gpdb,yuanzhao/gpdb,Chibin/gpdb,kaknikhil/gpdb,edespino/gpdb,edespino/gpdb,adam8157/gpdb,lisakowen/gpdb,50wu/gpdb,adam8157/gpdb,jmcatamney/gpdb,adam8157/gpdb,jmcatamney/gpdb,rvs/gpdb,xinzweb/gpdb,adam8157/gpdb,cjcjameson/gpdb,ashwinstar/gpdb,50wu/gpdb,edespino/gpdb,cjcjameson/gpdb,yuanzhao/gpdb,kaknikhil/gpdb,kaknikhil/gpdb,Chibin/gpdb,kaknikhil/gpdb,Quikling/gpdb,rvs/gpdb,xinzweb/gpdb,Chibin/gpdb,Chibin/gpdb,yuanzhao/gpdb,50wu/gpdb,50wu/gpdb,xinzweb/gpdb,ashwinstar/gpdb,greenplum-db/gpdb,jmcatamney/gpdb,lisakowen/gpdb,ashwinstar/gpdb,rvs/gpdb,yuanzhao/gpdb,kaknikhil/gpdb,Quikling/gpdb,janebeckman/gpdb,adam8157/gpdb,adam8157/gpdb,lisakowen/gpdb,kaknikhil/gpdb,ashwinstar/gpdb,janebeckman/gpdb,janebeckman/gpdb,Quikling/gpdb,jmcatamney/gpdb