tdf#143982 doc/x export: save automatic table as 100% relative

Currently, the automatic mode is just being saved as
"determine width from cell size" or absolute size.
But a better match would be 100% of the available space,
so that changing the page or margin size would automatically
increase the table size (which is what automatic implies).

It doesn't appear that MS formats really have a
similar automatic. Their automatic just seems to
say that the width isn't specified at the table level.
So a percent-size seems to be the best match.

RTF currently does not even round-trip relative tables,
so I ignored that format.

Change-Id: I5bfc066864ab630755046b881e98503491cfb1ee
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/123128
Tested-by: Jenkins
Reviewed-by: Justin Luth <justin_luth@sil.org>

0 files changed, 0 insertions, 0 deletions