BUG #8376: Doc update: CREATE ROLE

The following bug has been logged on the website:

Bug reference:      8376
Logged by:          David Tonhofer
Email address:      bughunt@gluino.name
PostgreSQL version: 9.2.4
Operating system:   Linux
Description:

At: http://www.postgresql.org/docs/9.2/static/sql-createrole.html


1) Description of how to set "ROLCATUPDATE" is missing (if there is such an
option)


2) The option 'VALID UNTIL' should mention:
   a) The special value 'infinity', which
      seems to be equal to NULL
   b) The fact that validity applies to
      the password and thus does not
      affect logins done by other means
      than passwords.