arguments.php
private function longestFlag($flag_sets)
    {
        $longest = 0;
        foreach ($flag_sets as $flags) {
            foreach ($flags as $flag) {
                $longest = max($longest, strlen($this->renderFlag($flag)));
            }
        }

        return $longest;
    }
private function longestFlag($flag_sets)
    {
        $longest = 0;
        foreach ($flag_sets as $flags) {
            foreach ($flags as $flag) {
                $longest = max($longest, strlen($this->renderFlag($flag)));
            }
        }

        return $longest;
    }
Works out the longest flag for formatting purposes.

@param array $flag_sets The internal flag set list.