This addresses some cppcheck warnings.

Change-Id: Ib6b9651b828287665f7248052855f0da2779806e
Reviewed-on: https://gerrit.libreoffice.org/13968Reviewed-by: Noel Grandin <noelgrandin@gmail.com>
Tested-by: Noel Grandin <noelgrandin@gmail.com>