fix: allow UDPSendto to be canceled #127
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if
r.recvfromiserror.Canceled, the call tostd.net.Address.initPosixfails, because it is passed garbage data.this PR creates a bogus address in the case that
r.recvfromis any error, in order to correctly pass error handling to user code.it wasn't immediately clear to me whether
std.net.Address.initPosixshould succeed in other error cases; a more conservative change would only create the bogus address in the case thatr.recvfromiserror.Canceled.