Use tac to print the kernel list in reverse

90zfsbootmenu/module-setup.sh

@@ -56,6 +56,7 @@ install() {
   fi
   dracut_install /usr/bin/mount.zfs
   dracut_install /usr/lib/udev/vdev_id
+  dracut_install tac
   dracut_install awk
   dracut_install basename
   dracut_install cut

90zfsbootmenu/zfsbootmenu-lib.sh

@@ -277,7 +277,7 @@ select_kernel() {
       if [[ "${kernel}" =~ "${specific_kernel}" ]]; then
         break
       fi
-    done <<<"$( cat ${BASE}/${zfsbe}/kernels )"
+    done <<<"$( tac ${BASE}/${zfsbe}/kernels )"
   fi
 
   echo "${kexec_args}"