Upgrade editors/openoffice-devel to upstream SVN revision r1847189.
This contains the fix for the crash in Freetype code, See
https://bz.apache.org/ooo/show_bug.cgi?id=127929 [1]

Ensure that unowinreg.dll is included in DISTFILES when running the
makesum and distclean targets. This has been missing from distinfo
since r468039 which was committed in April.

PR: 233404 [1]
MFH: 2018Q4