net: TestUDPZeroBytePayload failures

[gopherbot]

#!watchflakes
default <- pkg == "net" && test == "TestUDPZeroBytePayload"

Issue created automatically to collect these failures.

Example (log):

--- FAIL: TestUDPZeroBytePayload (30.02s)
    udpsock_test.go:372: ReadFrom of zero byte packet failed: read udp4 127.0.0.1:58168: i/o timeout

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "net" && test == "TestUDPZeroBytePayload"

2024-04-08 15:53 dragonfly-amd64-622 go@da732dd1 net.TestUDPZeroBytePayload (log)

--- FAIL: TestUDPZeroBytePayload (30.02s)
    udpsock_test.go:372: ReadFrom of zero byte packet failed: read udp4 127.0.0.1:58168: i/o timeout

— watchflakes