- Add latest mainline fixes:
A lanserv-Add-the-judgment-on-the-validity-of-length-in-emu_cmd.c-and-session-in-lanserv_ipmi.c.patch
A unix_thread-Remove-the-fd-handler-sets-before-it-s-set-up.patch

- Update to version 2.0.31
Adopted patches to latest sources:
M OpenIMPI-add-libncurses.patch
M OpenIPMI-no-return-in-nonvoid-function.patch
M OpenIPMI-prefer_perl_vendor.patch
M fix_dia_version_detection.patch
M openipmi-tinfo.patch

- Use Python3 instead of Python2 (bsc#1190999).