xmloff: ODF import: adapt generator parsing to 2-digit major versions
DocumentInfo currently assumes that a LO version encoded in "BuildId"
property has only 1 digit major version, which is now wrong and would
start to give incorrect results when major version "30" will be detected
as LO_3x.
Add the dots as separators into the BuildId because it's not going to
work without.
Change-Id: I8918afe3642cbefa8488c57658f1505c9a20eddd
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/153649
Tested-by: Jenkins
Reviewed-by: Michael Stahl <michael.stahl@allotropia.de>
(cherry picked from commit
b1ce8bb078904db1df542f7a1c2ed527dde1a2d3)
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/153694