test_threading_local: add missing "import sys" (GH-8049)

(cherry picked from commit a0bb51e44c)

Co-authored-by: cclauss <cclauss@me.com>
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Miss Islington (bot) 2019-01-06 14:32:52 -08:00 committed by GitHub
parent be37dbff1c
commit 65ed9f31cf
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@ -1,3 +1,4 @@
import sys
import unittest
from doctest import DocTestSuite
from test import support