fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph

hyunwoo f720796e24 fixed typo ... Summary: fixed exisitng -> existing Closes https://github.com/facebook/rocksdb/pull/2305 Differential Revision: D5070169 Pulled By: yiwu-arbug fbshipit-source-id: 8c8450acf50757b767cf78b78314018395738d96		8 years ago
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gtest	fixed typo	8 years ago