fix merge-event-log-tags.py deprecation warning

import cStringIO

import getopt

import md5

try:

  import hashlib

except ImportError:

  import md5 as hashlib

import struct

import sys

# versions of python.  Using md5 is overkill here but is the same from

# platform to platform and speed shouldn't matter in practice.

def hashname(str):

  d = md5.md5(str).digest()[:4]

  d = hashlib.md5(str).digest()[:4]

  return struct.unpack("!I", d)[0]

# Assign a tag number to all the entries that say they want one