[gnome-system-monitor] Really install Appdata file

[Stefano Facchini <sfacchini src gnome org>]

commit 215d459e2fa5f2ba0097041961561a4b4c0a9be3
Author: Stefano Facchini <stefano facchini gmail com>
Date:   Mon Sep 9 19:05:05 2013 +0200

    Really install Appdata file

 Makefile.am |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index 47fd92e..dc4ccf3 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -12,7 +12,7 @@ ui_files = \
        data/menus.ui
 
 appdatadir = $(datadir)/appdata
-appdata_files = gnome-system-monitor.appdata.xml
+appdata_DATA = gnome-system-monitor.appdata.xml
 
 css_files = \
        data/gsm.css
@@ -31,7 +31,7 @@ org.gnome.gnome-system-monitor.policy.in: org.gnome.gnome-system-monitor.policy.
 EXTRA_DIST = \
        $(ui_files) \
        $(css_files) \
-    $(appdata_files) \
+       $(appdata_DATA) \
        $(pixmap_files) \
        $(runnable_SCRIPTS) \
        org.gnome.gnome-system-monitor.policy.in.in \