fix Sleep() overflow condition in time module about cpython HOT 6 CLOSED

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Checked in verbatim.

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Jeez -- it's embarrassing that a patch this obviously good has been sitting for so long. My apologies -- but I'm still going to go to sleep rather than slog thru the others now <wink>.
Accepted & assigned back to Trent.

from cpython.

Jeez -- it's embarrassing that a patch this obviously good has been sitting for so long. My apologies -- but I'm still going to go to sleep rather than slog thru the others now <wink>.
Accepted & assigned back to Trent.

from cpython.

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This patch fixes a possible overflow in the Sleep system call on Win32/64 in
the time_sleep() function in the time module. For very large values of the
give time to sleep the number of milliseconds can overflow and give
unexpected sleep intervals. THis patch raises an OverflowError if the value
overflows.

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