[gnome-control-center/extensible-shell] Fix include dir definition

[William Jon McCann <mccann src gnome org>]

commit d91de9a335b0bcade47ffe7bf701d7a25e85c6be
Author: William Jon McCann <jmccann redhat com>
Date:   Sun Jan 31 20:45:39 2010 -0500

    Fix include dir definition

 libgnome-control-center-extension/Makefile.am |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)
---
diff --git a/libgnome-control-center-extension/Makefile.am b/libgnome-control-center-extension/Makefile.am
index e170713..fc6fbc9 100644
--- a/libgnome-control-center-extension/Makefile.am
+++ b/libgnome-control-center-extension/Makefile.am
@@ -44,9 +44,7 @@ libgnome_control_center_extension_la_LIBADD = 		\
 
 libgnome_control_center_extension_la_LIBTOOLFLAGS = --tag=disable-static
 
-libgnome_control_center_extension_includedir =		\
-	$(includedir)/gnome-control-center-1/libgnome-control-center-extension	\
-	$(NULL)
+libgnome_control_center_extension_includedir = $(includedir)/gnome-control-center-1/libgnome-control-center-extension
 
 libexec_PROGRAMS = cc-theme-thumbnailer-helper