print "DONE; creating $orig_branch branch\n" if $opt_v;
system("git-update-ref", "refs/heads/master", "$remote/$opt_o")
unless -f "$git_dir/refs/heads/master";
+ system("git-symbolic-ref", "$remote/HEAD", "$remote/$opt_o")
+ if ($opt_r && $opt_o ne 'HEAD');
system('git-update-ref', 'HEAD', "$orig_branch");
unless ($opt_i) {
system('git checkout');