also modified check_all function to suppress all warnings since they aren't
relevant to what this test is doing (allows quiet checking of regsub, for
instance)

warnings in this same module, to prevent getting a warning about
importing regex (we *know* that it's obsolete :-).

Use != instead of <> since <> is documented as "obsolescent".
Use "is" and "is not" when comparing with None or type objects.

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.

string as the key to the cache.  This means that changing the syntax
will return the correct compiled pattern.

clear_cache(): New function.

Give capwords a default pattern argument which will recognize words as
sequeces of [a-zA-Z0-9_].

optional third argument gives a maximum number of delimiters to parse.
The new function splitx() is like split() but returns a list
containing the words as well as the delimiters.

string.splitfields(s, '') now returns [s] as split() in nawk.
Added _exit to exported functions of os.