Reduced the scope of some variables in source.

Change-Id: I705e7f2587fd81015f06fb301eb8d4a270668d73
Reviewed-on: https://gerrit.libreoffice.org/53042Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Gökhan Gurbetoğlu <gokhan.gurbetoglu@pardus.org.tr>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>