postgres admin.sql fixes

[Alan DeKok]

Wichert Akkerman wrote:
> The postgresql/admin.sql that ships in current Debian stable
> unfortunately does not work: psql does not accept the comment syntax
> used, host/domain names in roles or database names in columns for GRANT
> statements.

  OK.

> The attached patch below fixes this. There may still be problems with
> missing GRANTs for the sequences, I'll recheck those tomorrow.
> 
> This might of course all be fixes in the current sourcetree, in which
> case I apologize for the noise.

  I've committed similar fixes, as the patch didn't apply to the current
git tree.  Please check it out...

  Alan DeKok.