bin2mif: fast_ram expects unpacked decimal filename indicies

fw/bin2mif.pl

@@ -27,7 +27,7 @@ for (my $s = 0; $s < $stride; $s++) {
     my $ofname = $outfile;
     if ($stride > 1) {
 	$outfile =~ /^(.*?)(\.\w+)?$/;
-	$ofname = sprintf("%s.%0${sdig}x%s", $1, $s, $2);
+	$ofname = sprintf("%s.%d%s", $1, $s, $2);
     }
     
     open(my $out, '>', $ofname) or die;