Silence rpm scriptlet output

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

http://fedoraproject.org/wiki/Packaging:ScriptletSnippets

evolution-data-server.spec

@@ -25,7 +25,7 @@
 
 Name: evolution-data-server
 Version: 3.4.1
-Release: 1%{?dist}
+Release: 2%{?dist}
 Group: System Environment/Libraries
 Summary: Backend data server for Evolution
 License: LGPLv2+
@@ -236,11 +236,11 @@ rm -rf $RPM_BUILD_ROOT
 %postun
 /sbin/ldconfig
 if [ $1 -eq 0 ] ; then
-    glib-compile-schemas %{_datadir}/glib-2.0/schemas
+    glib-compile-schemas %{_datadir}/glib-2.0/schemas &>/dev/null || :
 fi
 
 %posttrans
-glib-compile-schemas %{_datadir}/glib-2.0/schemas
+glib-compile-schemas %{_datadir}/glib-2.0/schemas &>/dev/null || :
 
 %files -f %{name}-%{eds_base_version}.lang
 %defattr(-,root,root,-)
@@ -353,6 +353,9 @@ glib-compile-schemas %{_datadir}/glib-2.0/schemas
 %{_datadir}/gtk-doc/html/libedataserverui
 
 %changelog
+* Tue Apr 24 2012 Kalev Lember <kalevlember@gmail.com> - 3.4.1-2
+- Silence rpm scriptlet output
+
 * Mon Apr 16 2012 Richard Hughes <hughsient@gmail.com> - 3.4.1-1
 - Update to 3.4.1