Save a copy of errno before invoking syslog() if accept() or select() fail. syslog() can trash the errno value causing nfsd to exit for non-fatal errors like ECONNABORTED from accept().
Save a copy of errno before invoking syslog() if accept() or select() fail.
syslog() can trash the errno value causing nfsd to exit for non-fatal
errors like ECONNABORTED from accept().

MFC after:	1 week

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