BUG #1848: Segfault with pg_dump when database name omitted

The following bug has been logged online:

Bug reference:      1848
Logged by:          Eric Boutin
Email address:      boutiner@gmail.com
PostgreSQL version: 8
Operating system:   Solaris 10 amd64
Description:        Segfault with pg_dump when database name omitted
Details:

Short example that tells it all :
[eric@imelda ~]$ pg_dump -U appserv -t tbl_dossiers -s
pg_dump: [archiver (db)] connection to database "Segmentation Fault (core
dumped)
[eric@imelda ~]$

It's not a major error in itself, but a segfault is never a good thing and
could potentially lead to buffer overflow/code execution

Fix : don't forget to append the database name

That's about it
Thanks for your good application