[vala] vala: Fix default-value warning

[Rico Tzschichholz <ricotz src gnome org>]

commit 668318ce4e6e427bae809e4ebd5fc547c32f0f1c
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Thu Aug 29 12:39:21 2013 +0200

    vala: Fix default-value warning

 vala/valagirparser.vala |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/vala/valagirparser.vala b/vala/valagirparser.vala
index 3ad7335..7a95b7b 100644
--- a/vala/valagirparser.vala
+++ b/vala/valagirparser.vala
@@ -2195,7 +2195,7 @@ public class Vala.GirParser : CodeVisitor {
                return type;
        }
 
-       Parameter parse_parameter (out int array_length_idx = null, out int closure_idx = null, out int 
destroy_idx = null, out string? scope = null, out Comment? comment, string? default_name = null) {
+       Parameter parse_parameter (out int array_length_idx = null, out int closure_idx = null, out int 
destroy_idx = null, out string? scope = null, out Comment? comment = null, string? default_name = null) {
                Parameter param;
 
                array_length_idx = -1;