Rename a libpq NOT_USED SSL function to verify_peer_name_matches_certificate(), clarify some of the function's variables and logic, and update a comment.  This should make SSL improvements easier in the future.
Rename a libpq NOT_USED SSL function to
verify_peer_name_matches_certificate(), clarify some of the function's
variables and logic, and update a comment.  This should make SSL
improvements easier in the future.

lisakowen/gpdb,yuanzhao/gpdb,yuanzhao/gpdb,arcivanov/postgres-xl,ashwinstar/gpdb,pavanvd/postgres-xl,adam8157/gpdb,snaga/postgres-xl,jmcatamney/gpdb,xinzweb/gpdb,50wu/gpdb,yazun/postgres-xl,postmind-net/postgres-xl,adam8157/gpdb,lisakowen/gpdb,adam8157/gpdb,tpostgres-projects/tPostgres,jmcatamney/gpdb,oberstet/postgres-xl,kmjungersen/PostgresXL,greenplum-db/gpdb,50wu/gpdb,kmjungersen/PostgresXL,edespino/gpdb,Chibin/gpdb,tpostgres-projects/tPostgres,ashwinstar/gpdb,xinzweb/gpdb,postmind-net/postgres-xl,snaga/postgres-xl,zeroae/postgres-xl,snaga/postgres-xl,jmcatamney/gpdb,yuanzhao/gpdb,jmcatamney/gpdb,oberstet/postgres-xl,snaga/postgres-xl,kmjungersen/PostgresXL,yazun/postgres-xl,xinzweb/gpdb,edespino/gpdb,lisakowen/gpdb,techdragon/Postgres-XL,ovr/postgres-xl,yuanzhao/gpdb,tpostgres-projects/tPostgres,pavanvd/postgres-xl,postmind-net/postgres-xl,yuanzhao/gpdb,yuanzhao/gpdb,adam8157/gpdb,techdragon/Postgres-XL,zeroae/postgres-xl,adam8157/gpdb,ashwinstar/gpdb,zeroae/postgres-xl,50wu/gpdb,Postgres-XL/Postgres-XL,zeroae/postgres-xl,oberstet/postgres-xl,ashwinstar/gpdb,Chibin/gpdb,arcivanov/postgres-xl,jmcatamney/gpdb,Postgres-XL/Postgres-XL,tpostgres-projects/tPostgres,yazun/postgres-xl,greenplum-db/gpdb,Chibin/gpdb,postmind-net/postgres-xl,ovr/postgres-xl,edespino/gpdb,jmcatamney/gpdb,xinzweb/gpdb,yuanzhao/gpdb,50wu/gpdb,lisakowen/gpdb,techdragon/Postgres-XL,techdragon/Postgres-XL,kmjungersen/PostgresXL,adam8157/gpdb,kmjungersen/PostgresXL,ashwinstar/gpdb,ovr/postgres-xl,edespino/gpdb,techdragon/Postgres-XL,ashwinstar/gpdb,edespino/gpdb,Chibin/gpdb,ashwinstar/gpdb,Chibin/gpdb,adam8157/gpdb,arcivanov/postgres-xl,yazun/postgres-xl,postmind-net/postgres-xl,greenplum-db/gpdb,lisakowen/gpdb,jmcatamney/gpdb,Chibin/gpdb,pavanvd/postgres-xl,greenplum-db/gpdb,arcivanov/postgres-xl,greenplum-db/gpdb,xinzweb/gpdb,50wu/gpdb,xinzweb/gpdb,lisakowen/gpdb,Chibin/gpdb,edespino/gpdb,edespino/gpdb,tpostgres-projects/tPostgres,Chibin/gpdb,yuanzhao/gpdb,pavanvd/postgres-xl,yuanzhao/gpdb,ovr/postgres-xl,yazun/postgres-xl,50wu/gpdb,jmcatamney/gpdb,lisakowen/gpdb,zeroae/postgres-xl,lisakowen/gpdb,pavanvd/postgres-xl,Postgres-XL/Postgres-XL,xinzweb/gpdb,ashwinstar/gpdb,adam8157/gpdb,yuanzhao/gpdb,50wu/gpdb,ovr/postgres-xl,Chibin/gpdb,arcivanov/postgres-xl,arcivanov/postgres-xl,xinzweb/gpdb,Chibin/gpdb,edespino/gpdb,Postgres-XL/Postgres-XL,edespino/gpdb,greenplum-db/gpdb,50wu/gpdb,oberstet/postgres-xl,Postgres-XL/Postgres-XL,snaga/postgres-xl,oberstet/postgres-xl,greenplum-db/gpdb,greenplum-db/gpdb,edespino/gpdb