...that are included from various source directories.  Change done in
preparation of loplugin:includeform.

Change-Id: Ie46f4b940ceeb34fd8883dc17f56a072f625ee3a
Reviewed-on: https://gerrit.libreoffice.org/43442Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>