minor issue: \c without parameter disconnect current user

Hi

I expect so \c without parameters has only informational character. But \c
reset user.

postgres=# set role to tom;
SET
Time: 0.787 ms
postgres=> select current_user;
+--------------+
| current_user |
+--------------+
| tom |
+--------------+
(1 row)

Time: 0.851 ms
postgres=> \c
You are now connected to database "postgres" as user "pavel".
postgres=# select current_user;
+--------------+
| current_user |
+--------------+
| pavel |
+--------------+
(1 row)

Regards

Pavel