Update xdg-utils to the latest version available in git.

third_party/xdg-utils/scripts/xdg-screensaver.in

 #!/bin/sh
 #---------------------------------------------
 #   xdg-screensaver
 #
 #   Utility script to control screensaver.
 #
 #   Refer to the usage() function below for usage.
 #
 #   Copyright 2006, Bryce Harrington <bryce@osdl.org>
 #
@@ skipping 82 matching lines @@
       fi
       ;;
 
     gnome_screensaver)
       screensaver_gnome_screensaver "$1"
       ;;
 
     xscreensaver)
       screensaver_xscreensaver "$1"
       ;;
+
+    '')
+      screensaver_xserver "$1"
+      ;;
   esac
 
   if [ "$1" = "suspend" ] ; then
       # Save DPMS state
       if xset -q | grep 'DPMS is Enabled' > /dev/null 2> /dev/null; then
           test "${TMPDIR+set}" = set || TMPDIR=/tmp
           tmpfile=`mktemp $TMPDIR/tmp.XXXXXXXXXX`
           $MV "$tmpfile" "$screensaver_file.dpms"
           # Disable DPMS
           xset -dpms
@@ skipping 180 matching lines @@
             echo "enabled"
         elif [ x"$status" = "xfalse" ]; then
             echo "disabled"
         else
             echo "ERROR: dbus org.freedesktop.ScreenSaver.GetActive returned '$status'" >&2
             return 1
         fi
         ;;
 
         *)
-        echo "ERROR:  Unknown command '$1'" >&2
+        echo "ERROR: Unknown command '$1'" >&2
         return 1
         ;;
     esac
 }
 
 screensaver_kde()
 {
     case "$1" in
         suspend)
         dcop kdesktop KScreensaverIface enable false > /dev/null
@@ skipping 22 matching lines @@
         ;;
 
         status)
         status=`dcop kdesktop KScreensaverIface isEnabled`
         result=$?
         if [ x"$status" = "xtrue" ]; then
             echo "enabled"
         elif [ x"$status" = "xfalse" ]; then
             echo "disabled"
         else
-            echo "ERROR:  kdesktop KScreensaverIface isEnabled returned '$status'" >&2
+            echo "ERROR: kdesktop KScreensaverIface isEnabled returned '$status'" >&2
             return 1
         fi
         ;;
 
         *)
-        echo "ERROR:  Unknown command '$1'" >&2
+        echo "ERROR: Unknown command '$1'" >&2
+        return 1
+        ;;
+    esac
+}
+
+screensaver_xserver()
+{
+    case "$1" in
+        suspend)
+        xset s off > /dev/null
+        result=$?
+        ;;
+
+        resume)
+        xset s default > /dev/null
+        result=$?
+        ;;
+
+        activate)
+        xset s activate > /dev/null
+        result=$?
+        ;;
+
+        reset)
+        xset s reset > /dev/null
+        result=$?
+        ;;
+
+        status)
+        timeout=`xset q | sed '/^Screen Saver:/,/^[^ ]/ { s/.*timeout: *\([0-9]*\).*/\1/; t }; d'`
+        result=$?
+        if [ "$timeout" -gt 0 ]; then
+            echo "enabled"
+        elif [ "$timeout" -eq 0 ]; then
+            echo "disabled"
+        else
+            echo "ERROR: xset q did not report the screensaver timeout" >&2
+            return 1
+        fi
+        ;;
+
+        *)
+        echo "ERROR: Unknown command '$1'" >&2
         return 1
         ;;
     esac
 }
 
 screensaver_suspend_loop()
 {
   lockfile
   test "${TMPDIR+set}" = set || TMPDIR=/tmp
   tmpfile=`mktemp $TMPDIR/tmp.XXXXXXXXXX`
@@ skipping 60 matching lines @@
             echo "disabled"
         elif gnome-screensaver-command --query > /dev/null 2> /dev/null; then
             echo "enabled"
         else
             # Something is wrong
             echo "disabled"
         fi
         ;;
 
         *)
-        echo "ERROR:  Unknown command '$1" >&2
+        echo "ERROR: Unknown command '$1" >&2
         return 1
         ;;
     esac
 }
 
 screensaver_xscreensaver()
 {
     case "$1" in
         suspend)
         screensaver_suspend_loop xscreensaver-command -deactivate
@@ skipping 24 matching lines @@
         status)
         result=0
         if [ -f "$screensaver_file" ] ; then
             echo "disabled"
         else
             echo "enabled"
         fi
         ;;
 
         *)
-        echo "ERROR:  Unknown command '$1" >&2
+        echo "ERROR: Unknown command '$1" >&2
         return 1
         ;;
     esac
 }
 
 [ x"$1" != x"" ] || exit_failure_syntax
 
 action=
 window_id=
 
@@ skipping 61 matching lines @@
 if [ "$action" = "suspend" ] ; then
     # Start tracking $window_id and resume the screensaver once it disappears
     ( track_window  ) 2> /dev/null > /dev/null &
 fi
 
 if [ $result -eq 0 ]; then
     exit_success
 else
     exit_failure_operation_failed
 fi