The part about keeping the original error number hasn't been accurate since
commit c11f75c (mingw: make sure errno is set correctly when socket
operations fail, 2019-11-25) and the part about strerror() not knowing
about these errors is untrue since the previous commit.
Signed-off-by: Matthias Aßhauer <mha1993@live.de>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>