Regression from commit 8b73bafb
(tdf#115719 DOCX import: increase paragraph spacing for anchored
objects, 2018-02-14), which is an import-time workaround for a Word
layout bug.

Re-checking the original document from that bug, this only happens with
more anchored shapes (to the same paragraph), so make the workaround
condition more strict, fixing the layout of this bugdoc.

(Which means tdf115719.docx and tdf115719b.docx are modified to be more
close to the original bugdoc.)

Just checked, sadly Word's layout bug is still there in MSO 2019, so
can't revert our emulation of it (not yet).

Change-Id: I26f74a497b7718f8f3a2eadac481c8722e85e680
Reviewed-on: https://gerrit.libreoffice.org/68708
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>