USR_LSR

Purpose:        Lists all users (username and uid only -> restricted)

Input Syntax:   USR_LSR

Input Params:   none

Output Syntax:  -<message> |
                +<name> <uid>

Output Params:  message    CHAR(128) = human-readable message
                name       CHAR(10)  = username
                uid        INT32     = user id

Right required: none

Implementation: f4adp_user.c / f4adp_usr_lsr()

Remarks:        If command succeeds, it creates one line for each user. The last line
                is a single "+".
