Fix one more incorrect errno definition in the ECPG manual.
Fix one more incorrect errno definition in the ECPG manual.

Again, back-patch all the way to 7.4.

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