Merge branch 'am/mingw-poll-fix' into maint

MinGW's poll() emulation has been improved. * am/mingw-poll-fix: mingw: workaround for hangs when sending STDIN

Junio C Hamano committed Mar 17, 2020 at 15:02 UTC 2d7247af6f8e86c9ada12536d7b59de7b826a084

No changes.