fix Xorg.wrap permission

trunk/xorg-server.install

@@ -5,6 +5,10 @@ post_upgrade() {
 }
 
 post_install() {
+
+    ## suid permission is not preserved during _install execution, fix it.
+    chmod u+s /usr/lib/Xorg.wrap
+
     cat <<MSG
 >>> Xorg-server has now the ability to run without root rights.
     To be able to use this features, install the package: