Make signature of RaggettInternalHHVM::cleanWrapped() compatible with RaggetBase's

Change-Id: I18239e7c6ba77a00c59015b791b7ea7e55154307

diff --git a/includes/tidy/RaggettInternalHHVM.php b/includes/tidy/RaggettInternalHHVM.php
index 03860be..2a3986d 100644 (file)
--- a/includes/tidy/RaggettInternalHHVM.php
+++ b/includes/tidy/RaggettInternalHHVM.php
@@ -12,7 +12,7 @@ class RaggettInternalHHVM extends RaggettBase {
         * @param int &$retval Exit code (-1 on internal error)
         * @return string|null
         */
-       protected function cleanWrapped( $text, $stderr = false, &$retval ) {
+       protected function cleanWrapped( $text, $stderr = false, &$retval = null ) {
                if ( $stderr ) {
                        throw new Exception( "\$stderr cannot be used with RaggettInternalHHVM" );
                }