[dconf] adjust to recent changes in vala compiler

[Ryan Lortie <ryanl src gnome org>]

commit 726e1cb641759eeed715b5ac82012edb5923a3e5
Author: Ryan Lortie <desrt desrt ca>
Date:   Wed Dec 28 21:20:17 2011 -0500

    adjust to recent changes in vala compiler
    
    It is now possible to have arrays of nullable types and some places
    where we had the equivalent non-null type are now considered to be
    errors.

 bin/dconf-dump.vala |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/bin/dconf-dump.vala b/bin/dconf-dump.vala
index 85b60e8..4fb8c02 100644
--- a/bin/dconf-dump.vala
+++ b/bin/dconf-dump.vala
@@ -49,13 +49,13 @@ KeyFile keyfile_from_stdin () throws Error {
 
 class DConfLoadState {
 	public string[] keys;
-	public Variant[] vals;
+	public Variant?[] vals;
 	int n_keys;
 	int i;
 
 	public DConfLoadState (int n) {
 		keys = new string[n + 1];
-		vals = new Variant[n];
+		vals = new Variant?[n];
 		n_keys = n;
 		i = 0;
 	}