S9fES  (command-line)  ==>  list

Return the command line arguments passed to the S9 interpeter
after the "--" argument. Each argument will be packaged in a
separate string.

(command-line)  ==>  ()             ; s9
(command-line)  ==>  ("a" "b" "c")  ; s9 -- a b c
                                    ; or s9 program a b c
