Fixes for openbox qt-rc.xml

usr/share/lubuntu/openbox/qt-rc.xml

@@ -420,7 +420,7 @@
     <!-- Lock the screen on Ctrl + Alt + l-->
     <keybind key="C-A-l">
       <action name="Execute">
-        <command>xscreensaver-command -lock</command>
+        <command>lxlock</command>
       </action>
     </keybind>
     <!-- Keybinding for Volume management -->
@@ -487,7 +487,7 @@
     <!-- Launch logout when push on the shutdown button -->
     <keybind key="XF86PowerOff">
       <action name="Execute">
-        <command>lubuntu-logout</command>
+        <command>lxsession-default quit</command>
       </action>
     </keybind>
   </keyboard>