cgi: style: return undef => return

diff --git a/public-inbox.cgi b/public-inbox.cgi
index 3c51c314ebe6c4452e84d8fbd3849357c559456f..34c63a567cbb46c95dd75c049d5fbe7759e9c5e6 100755 (executable)
--- a/public-inbox.cgi
+++ b/public-inbox.cgi
@@ -100,7 +100,7 @@ sub invalid_list {
        if (defined $git_dir) {
                $ctx->{git_dir} = $git_dir;
                $ctx->{listname} = $listname;
-               return undef;
+               return;
        }
        r404();
 }