push @out, $nref->config($nodes_only, $level+1, $seen, @_);
} else {
push @out, ' ' x (($level+1)*2) . "$ncall?" if @_ == 0 || (@_ && grep $ncall =~ m|$_|, @_);
push @out, $nref->config($nodes_only, $level+1, $seen, @_);
} else {
push @out, ' ' x (($level+1)*2) . "$ncall?" if @_ == 0 || (@_ && grep $ncall =~ m|$_|, @_);