maybe a bug with prolog script

Hello,

The following prolog script

-------------------------------
#! /usr/bin/swipl  -t main -s

main :-
         catch(goal, E, (print_message(error, E), fail)),
         halt.
main :-
         halt(1).

goal :-
	    writeln('hello').
------------------------------

works with SWI-Prolog version 6.4.1 for x86_64-linux

does not work with SWI-Prolog version 6.6.0 for amd64,
it displays :

swipl: Usage:
     1) swipl --help     Display this message (also -h)
     2) swipl --version  Display version information (also -v)
     3) swipl --arch     Display architecture
     ...

If I add arguments it works with SWI-Prolog version 6.4.1 for x86_64-linux
and does not with  SWI-Prolog version 6.6.0 for amd64.

Why ?

I have the same problem with the swi prolog version 6.5.3

Thanks a lot for yours answers

Dominique