[gimp] update the gtk+ dependency in INSTALL

[Sven Neumann <neo src gnome org>]

commit 7e120a99f4f167d9b28346ac23a2853aa2fba500
Author: Sven Neumann <sven gimp org>
Date:   Sun Oct 4 20:29:44 2009 +0200

    update the gtk+ dependency in INSTALL

 INSTALL |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/INSTALL b/INSTALL
index ed9b74c..113551d 100644
--- a/INSTALL
+++ b/INSTALL
@@ -43,7 +43,7 @@ header files installed.
        git://git.gnome.org/babl
        git://git.gnome.org/gegl
 
-  4. You need to have installed GTK+ version 2.16.1 or newer.
+  4. You need to have installed GTK+ version 2.16.6 or newer.
      GIMP also need a recent versions of GLib (>= 2.20.0) and
      Pango (>= 1.20.1). Sources for these can be grabbed from
      ftp://ftp.gtk.org/.