98-clean-chroot: fix check for presence of update-menus.

diff --git a/etc/grml/fai/config/scripts/GRMLBASE/98-clean-chroot b/etc/grml/fai/config/scripts/GRMLBASE/98-clean-chroot
index 923277f..a9bb0e0 100755 (executable)
--- a/etc/grml/fai/config/scripts/GRMLBASE/98-clean-chroot
+++ b/etc/grml/fai/config/scripts/GRMLBASE/98-clean-chroot
@@ -123,7 +123,7 @@ else
   $ROOTCMD ldconfig
 fi
 
-if [ -x $target/usr/bin/update-menus ] ; then
+if ! [ -x $target/usr/bin/update-menus ] ; then
   echo "Warning: update-menus not installed"
 else
   echo "Updating windowmanager menus"