Fix omission of DiscardStmt in GetCommandLogLevel, per report from Hubert Depesz Lubaczewski.  In HEAD, also move a couple of other cases to make the code ordering match up with ProcessUtility.
Fix omission of DiscardStmt in GetCommandLogLevel, per report from Hubert
Depesz Lubaczewski.  In HEAD, also move a couple of other cases to make the
code ordering match up with ProcessUtility.

xuegang/gpdb,edespino/gpdb,zaksoup/gpdb,ahachete/gpdb,jmcatamney/gpdb,greenplum-db/gpdb,rvs/gpdb,yuanzhao/gpdb,janebeckman/gpdb,janebeckman/gpdb,Chibin/gpdb,janebeckman/gpdb,Chibin/gpdb,adam8157/gpdb,0x0FFF/gpdb,zaksoup/gpdb,kaknikhil/gpdb,royc1/gpdb,edespino/gpdb,50wu/gpdb,50wu/gpdb,Chibin/gpdb,xinzweb/gpdb,chrishajas/gpdb,lisakowen/gpdb,Chibin/gpdb,chrishajas/gpdb,ashwinstar/gpdb,rvs/gpdb,xuegang/gpdb,zaksoup/gpdb,edespino/gpdb,rvs/gpdb,lisakowen/gpdb,CraigHarris/gpdb,jmcatamney/gpdb,rvs/gpdb,CraigHarris/gpdb,0x0FFF/gpdb,janebeckman/gpdb,royc1/gpdb,0x0FFF/gpdb,ahachete/gpdb,Chibin/gpdb,lisakowen/gpdb,Quikling/gpdb,adam8157/gpdb,yuanzhao/gpdb,greenplum-db/gpdb,zaksoup/gpdb,kaknikhil/gpdb,xinzweb/gpdb,janebeckman/gpdb,lisakowen/gpdb,50wu/gpdb,adam8157/gpdb,cjcjameson/gpdb,xinzweb/gpdb,chrishajas/gpdb,yuanzhao/gpdb,cjcjameson/gpdb,zaksoup/gpdb,lintzc/gpdb,rvs/gpdb,janebeckman/gpdb,greenplum-db/gpdb,yuanzhao/gpdb,janebeckman/gpdb,rvs/gpdb,CraigHarris/gpdb,adam8157/gpdb,lintzc/gpdb,50wu/gpdb,CraigHarris/gpdb,xinzweb/gpdb,jmcatamney/gpdb,50wu/gpdb,royc1/gpdb,royc1/gpdb,Quikling/gpdb,xuegang/gpdb,Quikling/gpdb,chrishajas/gpdb,CraigHarris/gpdb,Quikling/gpdb,chrishajas/gpdb,kaknikhil/gpdb,janebeckman/gpdb,edespino/gpdb,adam8157/gpdb,cjcjameson/gpdb,ashwinstar/gpdb,Chibin/gpdb,Quikling/gpdb,royc1/gpdb,Chibin/gpdb,edespino/gpdb,xuegang/gpdb,jmcatamney/gpdb,chrishajas/gpdb,Quikling/gpdb,lintzc/gpdb,rvs/gpdb,xuegang/gpdb,lintzc/gpdb,cjcjameson/gpdb,cjcjameson/gpdb,lisakowen/gpdb,50wu/gpdb,Chibin/gpdb,lintzc/gpdb,Chibin/gpdb,royc1/gpdb,xinzweb/gpdb,0x0FFF/gpdb,zaksoup/gpdb,edespino/gpdb,CraigHarris/gpdb,xuegang/gpdb,kaknikhil/gpdb,edespino/gpdb,50wu/gpdb,adam8157/gpdb,yuanzhao/gpdb,ashwinstar/gpdb,0x0FFF/gpdb,yuanzhao/gpdb,ahachete/gpdb,ashwinstar/gpdb,0x0FFF/gpdb,adam8157/gpdb,lintzc/gpdb,cjcjameson/gpdb,0x0FFF/gpdb,janebeckman/gpdb,chrishajas/gpdb,ashwinstar/gpdb,ahachete/gpdb,greenplum-db/gpdb,zaksoup/gpdb,xuegang/gpdb,CraigHarris/gpdb,lisakowen/gpdb,jmcatamney/gpdb,lisakowen/gpdb,rvs/gpdb,royc1/gpdb,greenplum-db/gpdb,kaknikhil/gpdb,CraigHarris/gpdb,ahachete/gpdb,CraigHarris/gpdb,xinzweb/gpdb,janebeckman/gpdb,greenplum-db/gpdb,xinzweb/gpdb,kaknikhil/gpdb,chrishajas/gpdb,yuanzhao/gpdb,edespino/gpdb,adam8157/gpdb,ahachete/gpdb,edespino/gpdb,Quikling/gpdb,cjcjameson/gpdb,xinzweb/gpdb,xuegang/gpdb,lisakowen/gpdb,cjcjameson/gpdb,Quikling/gpdb,yuanzhao/gpdb,ahachete/gpdb,rvs/gpdb,0x0FFF/gpdb,greenplum-db/gpdb,royc1/gpdb,ashwinstar/gpdb,lintzc/gpdb,xuegang/gpdb,jmcatamney/gpdb,edespino/gpdb,jmcatamney/gpdb,Chibin/gpdb,ashwinstar/gpdb,ashwinstar/gpdb,kaknikhil/gpdb,jmcatamney/gpdb,lintzc/gpdb,kaknikhil/gpdb,ahachete/gpdb,greenplum-db/gpdb,lintzc/gpdb,kaknikhil/gpdb,yuanzhao/gpdb,yuanzhao/gpdb,cjcjameson/gpdb,cjcjameson/gpdb,Quikling/gpdb,50wu/gpdb,zaksoup/gpdb,Quikling/gpdb,kaknikhil/gpdb,rvs/gpdb