fix logout script

Slax/debian/modules/03-desktop/rootcopy/usr/bin/fblogout

@@ -1,31 +1,31 @@
 #!/bin/bash
 
-exec xlunch --input /etc/xlunch/logout.dsv --noprompt --center --columns 3 --rows 1 \
+COMMAND=$(
+     xlunch --input /etc/xlunch/logout.dsv --noprompt --center --columns 3 --rows 1 \
             --background /usr/share/wallpapers/slax_wallpaper.jpg --font DejaVuSans/11 \
             --voidclickterminate --iconpadding 30 --textpadding 10 \
             --paddingswap --leastmargin 10 --hidemissing --iconsize 128 \
             --highlight /usr/share/icons/hicolor/128x128/apps/xlunch_highlight.png \
-            --outputonly | while read LINE; do
+            --outputonly
+)
 
-   SND=/usr/share/sounds/shutdown.wav
+SND=/usr/share/sounds/shutdown.wav
 
-   if [ "$LINE" != "" -a -r $SND ]; then
+if [ "$COMMAND" != "" -a -r $SND ]; then
    # blank desktop with smooth effect (if compton still running)
    xlunch --noprompt --input /dev/null --bc 111111ff &
    # play shutdown sound
    aplay $SND
-   fi
+fi
 
-   if [ "$LINE" = "logout" ]; then
+if [ "$COMMAND" = "logout" ]; then
    killall Xorg
-   fi
+fi
 
-   if [ "$LINE" = "restart" ]; then
+if [ "$COMMAND" = "restart" ]; then
    reboot
-   fi
+fi
 
-   if [ "$LINE" = "shutdown" ]; then
+if [ "$COMMAND" = "shutdown" ]; then
    poweroff
-   fi
-
-done
+fi