message: Prevent warning: variable 'x' is uninitialized
  backports bitcoin@5ec883667fe6fe323fe3ae42ee54cff77450da7d
diff: @@ -51,7 +51,7 @@ static void SHA512(benchmark::State& state)
  static void FastRandom_32bit(benchmark::State& state)
  {
  FastRandomContext rng(true);
  - uint32_t x;
  + uint32_t x = 0;
  while (state.KeepRunning()) {
  for (int i = 0; i < 1000000; i++) {
  x += rng.rand32();
  @@ -62,7 +62,7 @@ static void FastRandom_32bit(benchmark::State& state)
  static void FastRandom_1bit(benchmark::State& state)
  {
  FastRandomContext rng(true);
  - uint32_t x;
  + uint32_t x = 0;
  while (state.KeepRunning()) {
  for (int i = 0; i < 1000000; i++) {
  x += rng.randbool();
  