...and use it in configmgr/source/writemodfile.hxx

Change-Id: Ie683dc21010ed45cc454ff89bea0376994b351f2
Reviewed-on: https://gerrit.libreoffice.org/36270Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>