System.Posix.User is inadequate

[John Goerzen]

There are several problems with this module:

1) There is no way to get all users/groups on the system (getpwent)

2) The UserEntry type does not reflect the Gecos field (pw_gecos)

3) The UserEntry type does not reflect the password field (pw_passwd)

4) The GroupEntry type does not reflect the gr_passwd field

This renders is unfortunately useless for some very basic Unix tasks.

Is there still time to fix this for 6.6?