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

Change-Id: I186ab7581ee7896c54a600e5cde8721a97b26425
Reviewed-on: https://gerrit.libreoffice.org/43444Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>