More fixes for libpq's .gitignore file.
More fixes for libpq's .gitignore file.

The previous patches failed to cover a lot of symlinks that are only
added in platform-specific cases.  Make the lists match what's in the
Makefile for each branch.

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