bAll (ie "Find All") seems a little tricky for GetBackward but not for GetRowDirection method

Change-Id: I47d2b378fb493bcdc1ad30902a3a677eedc50789
Reviewed-on: https://gerrit.libreoffice.org/20067Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Julien Nabet <serval2412@yahoo.fr>
(cherry picked from commit 71f0e4e5)
Reviewed-on: https://gerrit.libreoffice.org/20105Reviewed-by: Eike Rathke <erack@redhat.com>
Tested-by: Eike Rathke <erack@redhat.com>