If you searched backwards and reached the start of the document,
the text "Reached the end of the document" was shown.

Change-Id: Ic35884de2f1ada07e76c9c3e27cf6c81c4a83304
Reviewed-on: https://gerrit.libreoffice.org/15597Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>