[vala] glib-2.0: Fix KeyFile get_comment and set_comment bindings

[Luca Bruno <lucabru src gnome org>]

commit 263a81c520122edc94e0ef9bf40e769c3243f4ce
Author: Luca Bruno <lucabru src gnome org>
Date:   Thu Mar 17 07:48:32 2011 +0100

    glib-2.0: Fix KeyFile get_comment and set_comment bindings

 vapi/glib-2.0.vapi |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/vapi/glib-2.0.vapi b/vapi/glib-2.0.vapi
index b953e68..047ac1a 100644
--- a/vapi/glib-2.0.vapi
+++ b/vapi/glib-2.0.vapi
@@ -3461,7 +3461,7 @@ namespace GLib {
 		public int[] get_integer_list (string group_name, string key) throws KeyFileError;
 		[CCode (array_length_type = "gsize")]
 		public double[] get_double_list (string group_name, string key) throws KeyFileError;
-		public string get_comment (string group_name, string key) throws KeyFileError;
+		public string get_comment (string? group_name, string? key) throws KeyFileError;
 		public void set_value (string group_name, string key, string value);
 		public void set_string (string group_name, string key, string str);
 		public void set_locale_string (string group_name, string key, string locale, string str);
@@ -3475,7 +3475,7 @@ namespace GLib {
 		public void set_boolean_list (string group_name, string key, bool[] list);
 		public void set_integer_list (string group_name, string key, int[] list);
 		public void set_double_list (string group_name, string key, double[] list);
-		public void set_comment (string group_name, string key, string comment) throws KeyFileError;
+		public void set_comment (string? group_name, string? key, string comment) throws KeyFileError;
 		public void remove_group (string group_name) throws KeyFileError;
 		public void remove_key (string group_name, string key) throws KeyFileError;
 		public void remove_comment (string group_name, string key) throws KeyFileError;