BUG #12203: No password dialog when access the postgresql server

The following bug has been logged on the website:

Bug reference: 12203
Logged by: Grady
Email address: wangzhipengkmust(at)126(dot)com
PostgreSQL version: 9.3.5
Operating system: Red hat 6.5
Description:

Hi Master
When i access the postgresql server, no password verfication appear.
My postgresql server[Revision:9.3.5] installed in REDHAT 6.5. I modifed
access method MD5 in the pg_hba.conf. When i used pgadmin and access the
server from localhost, everything is normal(password dialog appear).

The pg_hba.conf was as below:
# TYPE DATABASE USER ADDRESS METHOD
# "local" is for Unix domain socket connections only
local all all md5
# IPv4 local connections:
host all all 127.0.0.1/32 md5
host all all 9.0.0.1/8 md5
host all all 172.0.0.1/8 md5

When I use the command in my window7 client:
"psql.exe -U postgres -h9.115.195.245"
After i typed enter, i directly accessed the postgres server. There isnt any
password dialog appear.