glib-2.0: unichar.to_string doesn't return null

diff --git a/vapi/glib-2.0.vapi b/vapi/glib-2.0.vapi
index dc9ffbedda7d0cc79e33df878f994e63f6118740..58c3ea46cdbd57b4e4c959d4cae83b709892b6f6 100644 (file)
--- a/vapi/glib-2.0.vapi
+++ b/vapi/glib-2.0.vapi
@@ -937,7 +937,7 @@ public struct unichar {
 
        public int to_utf8 (string? outbuf);
 
-       public string? to_string () {
+       public string to_string () {
                string str = (string) new char[7];
                this.to_utf8 (str);
                return str;