Silence glib-compile-schemas output

Redirect it to /dev/null; end users aren't supposed to see the warnings
generated by glib-compile-schemas.

file-roller.spec

@@ -1,7 +1,7 @@
 Summary:        Tool for viewing and creating archives
 Name:           file-roller
 Version:        3.4.1
-Release:        1%{?dist}
+Release:        2%{?dist}
 License:        GPLv2+
 Group:          Applications/Archiving
 URL:            http://download.gnome.org/sources/file-roller/
@@ -79,12 +79,12 @@ update-desktop-database &> /dev/null || :
 if [ $1 -eq 0 ]; then
   touch --no-create %{_datadir}/icons/hicolor &> /dev/null || :
   gtk-update-icon-cache -q %{_datadir}/icons/hicolor &> /dev/null || :
-  glib-compile-schemas %{_datadir}/glib-2.0/schemas || :
+  glib-compile-schemas %{_datadir}/glib-2.0/schemas &> /dev/null || :
 fi
 
 %posttrans
 gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
-glib-compile-schemas %{_datadir}/glib-2.0/schemas || :
+glib-compile-schemas %{_datadir}/glib-2.0/schemas &> /dev/null || :
 
 %files -f %{name}.lang
 %doc README COPYING NEWS AUTHORS
@@ -104,6 +104,9 @@ glib-compile-schemas %{_datadir}/glib-2.0/schemas || :
 
 
 %changelog
+* Tue Apr 24 2012 Kalev Lember <kalevlember@gmail.com> - 3.4.1-2
+- Silence glib-compile-schemas output
+
 * Tue Apr 17 2012 Kalev Lember <kalevlember@gmail.com> - 3.4.1-1
 - Update to 3.4.1