message: reverse_lock: Rename shadowing declaration
diff: @@ -13,7 +13,7 @@ template <typename Lock>
  class reverse_lock
  {
  public:
  - explicit reverse_lock(Lock &lock) : lock(lock)
  + explicit reverse_lock(Lock &_lock) : lock(_lock)
  {
  lock.unlock();
  lock.swap(templock);
  