@ARGV <= 1 or usage();
$opt_o ||= "origin";
+$opt_s ||= 1;
$opt_l = 100 unless defined $opt_l;
my $git_tree = $opt_C;
$git_tree ||= ".";
my $maxnum = 0;
my $last_rev = "";
my $last_branch;
-my $current_rev = $opt_s ? ($opt_s-1) : 0;
+my $current_rev = $opt_s-1;
unless(-d $git_dir) {
system("git-init-db");
die "Cannot init the GIT db at $git_tree: $?\n" if $?;