Log Message:
-----------
Avoid crashing pg_dump if we can't connect to the database server, and
no database has been explicitly specified. Per gripe from Omar Kilani.
Modified Files:
--------------
pgsql/src/bin/pg_dump:
pg_backup_db.c (r1.63 -> r1.64)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/pg_dump/pg_backup_db.c.diff?r1=1.63&r2=1.64)