etcdmain: fix incomplete proxy config file #4037
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etcd might generate incomplete proxy config file after a power failure. It is because we use ioutil.WriteFile. And iotuile.WriteFile does not call Sync before closing the file.
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xiang90
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etcdmain: fix incomplete proxy config file
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etcd might generate incomplete proxy config file after a power failure.
It is because we use ioutil.WriteFile. And iotuile.WriteFile does
not call Sync before closing the file.
Fix #3861
/cc @heyitsanthony @gyuho