MSG_RM

Purpose:        Removes a message

Input Syntax:   MSG_RM {d|g:<groupname>|u:<username>} <name>

Input Params:   d|g:|u:   CHAR(2)  = get default, group or user messages
                groupname CHAR(16) = group name
                username  CHAR(16) = user name
                name      CHAR(32) = message name

Output Syntax:  +<message>

Output Params:  message CHAR(128) = human-readable message

Right required: R_MESSAGES

Implementation: f4adp_message.c / f4adp_msg_rm()
