found with:
   git ls-files | xargs grep -Pzl '/\*\*
(\*|\s|
)*\*/'

Change-Id: I1f47bcb94d5a7b290a6c622c6941195fbb578597
Reviewed-on: https://gerrit.libreoffice.org/37159Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>