(onearg-2): Output should be empty.

tests/seq/basic

@@ -25,7 +25,7 @@ my $prog = $ENV{PROG} || die "$0: \$PROG not specified in environment\n";
 my @Tests =
   (
    ['onearg-1',	qw(10),		{OUT => [(1..10)]}],
-   ['onearg-2',	qw(-1),		{OUT => [qw(1 0 -1)]}],
+   ['onearg-2',	qw(-1)],
    ['neg-1',	qw(-10 10 10),	{OUT => [qw(-10 0 10)]}],
    ['neg-2',	qw(-.1 .1 .1),	{OUT => [qw(-0.1 0 0.1)]}],
    ['neg-3',	qw(1 -1 0),	{OUT => [qw(1 0)]}],