[tracker/rss-enclosures] libtracker-sparql: Allow Cursor.get_string to return null

[Roberto Guido <rguido src gnome org>]

commit 18566e7f6f7781dbb7bac5f8c964064322eef806
Author: Philip Van Hoof <philip codeminded be>
Date:   Mon Jul 19 12:05:14 2010 +0200

    libtracker-sparql: Allow Cursor.get_string to return null

 src/libtracker-sparql/tracker-cursor.vala |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/libtracker-sparql/tracker-cursor.vala b/src/libtracker-sparql/tracker-cursor.vala
index 8aac0ed..3a83173 100644
--- a/src/libtracker-sparql/tracker-cursor.vala
+++ b/src/libtracker-sparql/tracker-cursor.vala
@@ -20,7 +20,7 @@
 public abstract class Tracker.Sparql.Cursor : Object {
 	public Connection connection { get; set; }
 	public abstract int n_columns { get; }
-	public abstract unowned string get_string (int column, out int length = null);
+	public abstract unowned string? get_string (int column, out long length = null);
 
 	public abstract bool next (Cancellable? cancellable = null) throws GLib.Error;
 	public async abstract bool next_async (Cancellable? cancellable = null) throws GLib.Error;