Merge remote-tracking branch 'origin/master'

svc/.gocache/0e/0e28aee83cf5cbf5c03de98ce01720baff97b979dd9b9e359afb55a3934772de-d

@@ -0,0 +1,13 @@
+./errno_windows.go
+./fd.go
+./fd_fsync_windows.go
+./fd_mutex.go
+./fd_poll_runtime.go
+./fd_posix.go
+./fd_windows.go
+./hook_windows.go
+./sendfile.go
+./sendfile_windows.go
+./sockopt.go
+./sockopt_windows.go
+./sockoptip.go