message: Change per code review suggestions
diff: @@ -2031,11 +2031,11 @@ class MklPrimitive {
  const mkldnn::memory::dims NONE_DIMS = {};
  //
  -// LRUCache is a class which implements LRU (Least Recently Use) cache.
  +// LRUCache is a class which implements LRU (Least Recently Used) cache.
  // The implementation is similar to that of
  // tensorflow/core/platform/cloud/expiring_lru_cache.h
  // without its thread-safe part because the cache is supposed to be
  -// used as thread local (for instance, MKLPrimitive caching).
  +// used as thread local (for instance, MklPrimitive caching).
  //
  // The LRU list maintains objects in chronological order based on
  // creation time, with the least recently accessed object at the
  @@ -2084,7 +2084,7 @@ class LRUCache {
  // delete the cached objects
  for (auto& key : lru_list_) {
  auto it = cache_.find(key);
  - DCHECK(it == cache_.end());
  + DCHECK(it != cache_.end());
  delete it->second.op;
  }
  @@ -2107,12 +2107,12 @@ class LRUCache {
  };
  // Remove the least recently accessed entry from LRU list, which
  - // is the tail of lru_list_. Correspondingly cache_ is updated.
  + // is the tail of lru_list_. Update cache_ correspondingly.
  bool Delete() {
  if (lru_list_.empty()) return false;
  string key = lru_list_.back();
  auto it = cache_.find(key);
  - DCHECK(it == cache_.end());
  + DCHECK(it != cache_.end());
  lru_list_.pop_back();
  delete it->second.op; // delete the object
  cache_.erase(it);
  