This patch changes a few of the scripts to have __name__=='__main__'
clauses so that they are importable without running. Also fixes the
syntax errors revealed by the tests.
I published it on the web as http://www.python.org/2.1/md5sum.py
so I thought I might as well check it in.
Works with Python 1.5.2 and later.
Works like the Linux tool ``mdfsum file ...'' except it doesn't take
any options or read stdin.