for ($c = 20 - length ($test); $c > 0; $c--) { print " "; }
-my $res = system("/usr/bin/time -o .res -f '%U' $interpreter $test 2>/dev/null 1>$stdout");
+my $res = system("/usr/bin/time -o .res -f '%U' $interpreter @ARGV $test 2>/dev/null 1>$stdout");
if ($res) {
printf ("failed $? (%d) signal (%d).\n", $? >> 8, $? & 127);