src/Marando/AstroDate/Traits/FormatTrait.php
private function formatL(&$str) {
    if (strstr($str, '%L'))
      $str = str_replace('%L', strtolower($this->dayName(true)), $str);
  }
private function formatL(&$str) {
    if (strstr($str, '%L'))
      $str = str_replace('%L', strtolower($this->dayName(true)), $str);
  }
A full textual lowercase representation of the day of the week
@param type $str