tries to use -h switch when not needed

I have noticed that on Mac OS X (v 1.8.1) and Debian Etch (v 1.4.3), I
see incorrect behavior when trying to restore into a database when the
connection to the database is via a UNIX domain socket.  In such a case,
there is no hostname specified.  However, the commandline produced for
the restore command is this:

/usr/bin/pg_restore -i -h  -p 5432 -U roberto -d jilldb -v "/network/home/roberto/tmp/pg.backup"

So, even though the configuration for the server in question lists
neither hostname nor port number, it tries to add both to the command
line.  Since the port has a sensible default, it is at least given a
value.  The host, on the other hand, has no sensible default and so is
left blank causing pg_restore to fail.  Anyhow, it seems to me that the
logic behind this should be made a little smarter such that if neither
host nor port are specified that the corresponding command-line options
should be omitted.

Regards,

-Roberto

-- 
Roberto C. Sánchez
http://people.connexer.com/~roberto
http://www.connexer.com