CFG_AVL

Purpose:        Get available configuration files

Input Syntax:   CFG_AVL

Input Params:   none

Output Syntax:  +<files>

Output Params:  files CHAR(512) = configuration file names, separated by SPACE

Right required: R_CONFIG

Implementation: f4adp_config.c / f4adp_cfg_avl()

Remarks:        Available configuration files means either present files or
                not present files. If a file is present, its name is preceded
                by a *, else by a -.
