Update .travis.yml (#391)

travis-ci/travis-ci#8920

fixes #390

Author: guykisel

.travis.yml

@@ -13,6 +13,8 @@ env:
   global:
     secure: >-
       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
+before_install:
+  - python -c "import fcntl; fcntl.fcntl(1, fcntl.F_SETFL, 0)" # https://github.com/travis-ci/travis-ci/issues/8920
 install:
   - pip install -U pip
   - pip install tox-travis