message: Update comment in segfault-test
diff: const test = require('tape')
  const testCommon = require('./common')
  -// Open issue: https://github.com/Level/leveldown/issues/157
  +// See https://github.com/Level/leveldown/issues/157, not yet ported to rocksdb.
  test.skip('close() does not segfault if there is a pending write', function (t) {
  t.plan(3)
  