Function ltrim

plugins/experimental/access_control/plugin.cc:205–213

* @brief a quick utility function to trim leading spaces. */

 * @brief a quick utility function to trim leading spaces.
 */
static void
ltrim(String &target)
{
  String::size_type p(target.find_first_not_of(' '));

  if (p != target.npos) {
    target.erase(0, p);
  }
}

/**
 * @brief a quick utility function to get next duplicate header.