[gtk+] Bump required version of glib in INSTALL.in, too

[Matthias Clasen <matthiasc src gnome org>]

commit c02fe1ff28c02ad932667a6f016c2732a6a1a022
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Mar 23 00:21:24 2010 -0400

    Bump required version of glib in INSTALL.in, too

 INSTALL.in |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/INSTALL.in b/INSTALL.in
index ae3bf4f..e28a067 100644
--- a/INSTALL.in
+++ b/INSTALL.in
@@ -4,7 +4,7 @@ Prerequisites
 GTK+ requires the following packages:
 
  - The GLib, Pango, ATK and cairo libraries, available at the same
-   location as GTK+. GTK+ @GTK_VERSION@ requires at least GLib 2.21.3,
+   location as GTK+. GTK+ @GTK_VERSION@ requires at least GLib 2.23.6,
    Pango 1.20, ATK 1.29.2 and cairo 1.6.0.
 
  - The TIFF, PNG, and JPEG image loading libraries. You most