Fixed typos. No automatic tools (sed, and so on).

Change-Id: Ia43976d84eede6f699381bc4f3daf89b95e4cb4f
Reviewed-on: https://gerrit.libreoffice.org/12150
Reviewed-by: Bryan Quigley <gquigs@gmail.com>
Reviewed-by: Michael Stahl <mstahl@redhat.com>
Tested-by: Michael Stahl <mstahl@redhat.com>