Print clines after multirow-blocks are finished

def _print_cline(self, buf, i, icol):
        """
        Print clines after multirow-blocks are finished
        """
        for cl in self.clinebuf:
            if cl[0] == i:
                buf.write('\\cline{{{cl:d}-{icol:d}}}\n'
                          .format(cl=cl[1], icol=icol))
        # remove entries that have been written to buffer
        self.clinebuf = [x for x in self.clinebuf if x[0] != i]