message: Update read-n-characters-given-read4.py
  Correcting a slight bug from my previous proposed change
diff: @@ -42,7 +42,7 @@ class Solution(object):
  size = read4(buffer)
  if size:
  toRead = min(globalN,size)
  - buf[read_bytes:read_bytes+toRead] = buffer
  + buf[read_bytes:read_bytes+toRead] = buffer[:toRead]
  read_bytes += toRead
  globalN -= toRead
  else:
  