Updated core

Project: help  5f63c5afbcb8e280ce5759ef1a72bc6d6b0d9d3c

Fix non-existing WORKDAYS function

function WORKDAYS is actually WORKDAY.

Change-Id: Ifd3b9b7f06d30eefdc3c7eef5e185fe83fa0f6c5
Reviewed-on: https://gerrit.libreoffice.org/33172Reviewed-by: Olivier Hallot <olivier.hallot@edx.srv.br>
Tested-by: Olivier Hallot <olivier.hallot@edx.srv.br>

helpcontent2 @ 5f63c5af

-Subproject commit b79a20a305cc44ab3fb1a10325274d4867768d66
+Subproject commit 5f63c5afbcb8e280ce5759ef1a72bc6d6b0d9d3c