[3.6] bpo-31786: Make select.poll.poll block if ms < 0 for every value of ms (GH-4003)#4022

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serhiy-storchaka merged 1 commit intopython:3.6from

pablogsal:backport-2c15b29-3.6

Oct 18, 2017

Commits on Oct 17, 2017

[3.6] bpo-31786: Make functions in the select module blocking when timeout is a small negative value. (GH-4003).
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