Comment 5 for bug 1435847

Reviewed: https://review.openstack.org/168355
Committed: https://git.openstack.org/cgit/stackforge/fuel-library/commit/?id=8af62206dcd297120c325a3798caa9d1412f01f1
Submitter: Jenkins
Branch: master

commit 8af62206dcd297120c325a3798caa9d1412f01f1
Author: Stanislaw Bogatkin <email address hidden>
Date: Fri Mar 27 17:30:08 2015 +0300

    Add comment line to blacklisting rules

    By default, udevd will abuse into log if some of the rules is
    empty files. There is 2 points:
     * we adding blank comment line to every suitable udev blacklisting
       rule when _blacklist_udev_rules applies

     * we do nothing when _unblacklist_udev_rules applies, cause it is
       bootstrap node fs - we can don't care about it at all

    Change-Id: I61179d9ad1384aec8ce773fe1f122912b3e05aa2
    Closes-Bug: #1435847