triggered when I noticed a class doing acquire() in the
constructor and then release() in the destructor.

found mostly by
    git grep -n -B5 -e '->release()'

Change-Id: I96e43a3d30ffd9ae9a34275f24cd914d8f7b026f
Reviewed-on: https://gerrit.libreoffice.org/25806Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noelgrandin@gmail.com>