Re: doc - add missing documentation for "acldefault"

Hello Fabien,

> However, the point of having hidden and/or undocumented functions
> fails me: they are hard/impossible to find if you do not know they
> exist from
> the start, and if you ever find one you do not know what they do
> without reading the source code in detail, eg to know what to give
> arguments to get an answer.
At first, we must decide in which cases users will use them.
And I don't see such cases.
I must to know how to grant privileges, how to revoke them and how to
check existing priveleges.
All theese tasks documented in GRANT, REVOKE commands and system catalog
descriptions.

Your's patch from another thread closes the last hole - describing
default privileges in various psql commands.

-----
Pavel Luzanov
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company