message: cpu examples: fix fd leak in volume.cpp
diff: /*
  - Copyright (c) 2011-2014, Intel Corporation
  + Copyright (c) 2011-2023, Intel Corporation
  All rights reserved.
  Redistribution and use in source and binary forms, with or without
  @@ -113,6 +113,7 @@ static float *loadVolume(const char *fn, int n[3]) {
  if (fscanf(f, "%d %d %d", &n[0], &n[1], &n[2]) != 3) {
  fprintf(stderr, "Couldn't find resolution at start of density file\n");
  + fclose(f);
  exit(1);
  }
  @@ -121,10 +122,12 @@ static float *loadVolume(const char *fn, int n[3]) {
  for (int i = 0; i < count; ++i) {
  if (fscanf(f, "%f", &v[i]) != 1) {
  fprintf(stderr, "Unexpected end of file at %d'th density value\n", i);
  + fclose(f);
  exit(1);
  }
  }
  + fclose(f);
  return v;
  }
  