Linux: Fix a bug in upstream xdg-utils that breaks xdg-settings.

scripts/xdg-open

 #!/bin/sh
 #---------------------------------------------
 #   xdg-open
 #
 #   Utility script to open a URL in the registered default application.
 #
 #   Refer to the usage() function below for usage.
 #
 #   Copyright 2009-2010, Fathi Boudra <fabo@freedesktop.org>
 #   Copyright 2009-2010, Rex Dieter <rdieter@fedoraproject.org>
@@ skipping 315 matching lines @@
       case "$(uname 2>/dev/null)" in 
         Darwin)
           DE=darwin;
           ;;
       esac
     fi
 
     if [ x"$DE" = x"gnome" ]; then
       # gnome-default-applications-properties is only available in GNOME 2.x
       # but not in GNOME 3.x
-      which gnome-default-applications-properties 2> /dev/null || DE="gnome3"
+      which gnome-default-applications-properties > /dev/null 2> /dev/null || DE="gnome3"
     fi
 }
 
 #----------------------------------------------------------------------------
 # kfmclient exec/openURL can give bogus exit value in KDE <= 3.5.4
 # It also always returns 1 in KDE 3.4 and earlier
 # Simply return 0 in such case
 
 kfmclient_fix_exit_code()
 {
@@ skipping 258 matching lines @@
     ;;
 
     generic)
     open_generic "$url"
     ;;
 
     *)
     exit_failure_operation_impossible "no method available for opening '$url'"
     ;;
 esac