Small corrections to message output targets in pg_ctl
Small corrections to message output targets in pg_ctl

- The message "server stopped" should be affected by the -s option, just
  like "server started" already was.

- The message "could not start server" should consistently go to stderr.

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