Adjust spacing for compizboxmenu

Use spaces instead of tabs for spacing. Also add an additional level of
spacing for each item in the menu.

src/xdgmenumaker

@@ -603,7 +603,7 @@ def jwmmenu():
 
 def compizboxmenu():
     if submenu:
-        spacing = '\t'
+        spacing = '  '
         if seticon:
             app_icon = icon_full_path(applications_icon)
             if app_icon is None:
@@ -631,7 +631,7 @@ def compizboxmenu():
             if path is not None:
                 command = 'sh -c \'cd "' + path.replace("'", "'\\''") + '" ; ' + command.replace("'", "'\\''") + '\''
             if seticon and icon is not None:
-                print(('{}<item type="launcher"><name>{}</name>'
+                print(('{}  <item type="launcher"><name>{}</name>'
                             '<icon>{}</icon>'
                             '<command>{}</command></item>').format(spacing,
                             name, icon, command.replace('&', '&amp;')))