lib/Twig/lib/Twig/Error/Syntax.php
public function addSuggestions($name, array $items)
    {
        if (!$alternatives = self::computeAlternatives($name, $items)) {
            return;
        }

        $this->appendMessage(sprintf(' Did you mean "%s"?', implode('", "', $alternatives)));
    }
public function addSuggestions($name, array $items)
    {
        if (!$alternatives = self::computeAlternatives($name, $items)) {
            return;
        }

        $this->appendMessage(sprintf(' Did you mean "%s"?', implode('", "', $alternatives)));
    }
Tweaks the error message to include suggestions.

@param string $name  The original name of the item that does not exist
@param array  $items An array of possible items