ROUTINE
-------

INT_ ug_check_prog_param  (char **prog_argv,
                           int prog_argc,
                           INT_ Message_Flag)

DESCRIPTION
-----------

Check program arguments.

INPUT ARGUMENTS
---------------

prog_argv                : Pointer to argument vector.
prog_argc                : Argument count.
Message_Flag             : Message flag.
                           If Message_Flag >= 1 then progress information is
                           written to standard output.

RETURN VALUE
---------------

0                        : Then no errors occurred.
>0                       : Errors occurred.
                           The return value will be between 400 and 499 or
                           the return value will be between 100400 and 100499
