python2-more-itertools from devel:languages:python:backports:fixups project

需要 15.3 ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/devel:languages:python:backports:fixups/15.3/devel:languages:python:backports:fixups.repo
zypper refresh
zypper install python2-more-itertools