Cheng Chang 2767972386 Fix warning when O_CLOEXEC is not defined (#6695)
Summary:
Compilation fails on systems that do not support O_CLOEXEC. Fix it.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6695

Test Plan: compile without O_CLOEXEC support

Reviewed By: anand1976

Differential Revision: D21011850

Pulled By: cheng-chang

fbshipit-source-id: f1bf1cce2aa65c7d10b5a9613e941db30e928347
2020-04-16 11:02:50 -07:00
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