Fix incorrect filename in code header
Fix incorrect filename in code header

The file is sendalert.c, not alert.c. Also make the header look a
tad more like upstream files to unify the tree a little and fix a
typo while in there.

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