Typos in couchbase-cli setting-index help output

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NOTE:

  USERNAME can be set in environment variable CB_REST_USERNAME and/or

  PASSWORD can be set in environment variable CB_REST_PASSWORD instead

setting-index OPTIONS:

  --index-max-rollback-points=[5]                                              max roolback points

  --index-stable-snapshot-interval=SECONDS                                     stable snapshot interval

  --index-memory-snapshot-interval=SECONDS                                     in memory snapshot interval

  --index-threads=[4]                                                          indexer threads

  --index-log-level=[debug|silent|fatal|error|warn|info|verbose|timing|trace]  indexr log level

usage: couchbase-cli setting-index CLUSTER [OPTIONS]

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