Forgot to add the default value

diff --git a/languages/LanguageVi.php b/languages/LanguageVi.php
index 8b6cb1d..703a91d 100644 (file)
--- a/languages/LanguageVi.php
+++ b/languages/LanguageVi.php
@@ -1563,7 +1563,7 @@ class LanguageVi extends LanguageUtf8 {
                '.' => ','
        );
 
-       function formatNum( $number, $year ) {
+       function formatNum( $number, $year = false ) {
                return !$year ? strtr($this->commafy($number), $this->digitTransTable ) : $number;
        }