Fix dead condition in LoadAppendOnlyFile

[git-hulk]

Currently, RedisShake checks the AOFOk and AOFTruncated return status inside the error if the condition that would never happen, it should be moved outside.

if ret == AOFOpenErr || ret == AOFFailed {
    if ret == AOFOk || ret == AOFTruncated {
...

[CLAassistant]

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