[metacity] bump gtk requirement to 2.20

[Thomas James Alexander Thurman <tthurman src gnome org>]

commit c27e58f5afdfe1000e302659ce2077b69777b903
Author: Thomas Thurman <tthurman gnome org>
Date:   Fri Jun 11 00:07:26 2010 -0400

    bump gtk requirement to 2.20

 configure.in |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/configure.in b/configure.in
index f5e3c93..67b6ba5 100644
--- a/configure.in
+++ b/configure.in
@@ -107,7 +107,7 @@ if test "x$GCC" = "xyes"; then
 fi
 changequote([,])dnl
 
-METACITY_PC_MODULES='gtk+-2.0 >= 2.10.0 pango >= 1.2.0 libcanberra-gtk'
+METACITY_PC_MODULES='gtk+-2.0 >= 2.20.0 pango >= 1.2.0 libcanberra-gtk'
 
 AC_ARG_ENABLE(gconf,
   AC_HELP_STRING([--disable-gconf],
@@ -164,7 +164,7 @@ AC_CHECK_HEADERS(execinfo.h, [AC_CHECK_FUNCS(backtrace)])
 AM_GLIB_GNU_GETTEXT
 
 ## here we get the flags we'll actually use
-# GOptionEntry requires	glib-2.6.0    
+# GOptionEntry requires         glib-2.6.0
 PKG_CHECK_MODULES(ALL, glib-2.0 >= 2.6.0)
 # gtk_window_set_icon_name requires gtk2+-2.60
 PKG_CHECK_MODULES(METACITY_MESSAGE, gtk+-2.0 >= 2.6.0)