The attached patches update the standard library so that all modules
have docstrings beginning with one-line summaries.
A new docstring was added to formatter. The docstring for os.py
was updated to mention nt, os2, ce in addition to posix, dos, mac.
* test_grammar.py, testall.out: added test for funny things in string literals
* token.py, symbol.py: definitions used with built-in parser module.
* tokenize.py: added double-quote recognition