message: Initialize recently introduced non-static class member lastCycles to
  zero in constructor
  backports bitcoin@069215ebe2d9c7cce7cee74b1f13f6e0daf552e9
  lastCycles was introduced in which was merged into master
  yesterday.
  Also initialize beginCycles to zero for consistency and completeness.
diff: @@ -58,12 +58,17 @@ namespace benchmark {
  uint64_t minCycles;
  uint64_t maxCycles;
  public:
  - State(std::string _name, duration _maxElapsed) : name(_name), maxElapsed(_maxElapsed), count(0) {
  - minTime = duration::max();
  - maxTime = duration::zero();
  - minCycles = std::numeric_limits<uint64_t>::max();
  - maxCycles = std::numeric_limits<uint64_t>::min();
  - countMask = 1;
  + State(std::string _name, duration _maxElapsed) :
  + name(_name),
  + maxElapsed(_maxElapsed),
  + minTime(duration::max()),
  + maxTime(duration::zero()),
  + count(0),
  + countMask(1),
  + beginCycles(0),
  + lastCycles(0),
  + minCycles(std::numeric_limits<uint64_t>::max()),
  + maxCycles(std::numeric_limits<uint64_t>::min()) {
  }
  bool KeepRunning();
  };
  