message: update binary-tree-longest-consecutive-sequence.py
diff: @@ -22,7 +22,7 @@ class Solution(object):
  if root.right and root.right.val == root.val + 1:
  cur_len = max(cur_len, right_len + 1)
  - self.max_len = max(self.max_len, cur_len, left_len, right_len)
  + self.max_len = max(self.max_len, cur_len)
  return cur_len
  