fix warnings when CONTINUOUS_INTEGRATION env var is unset
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@ -19,7 +19,9 @@ sub noninteractive {
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# CONTINUOUS_INTEGRATION gets set when running under Travis, see
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# http://docs.travis-ci.com/user/ci-environment/ and
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# https://github.com/travis-ci/travis-ci/issues/1337
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return (! -t STDOUT) || $ENV{CONTINUOUS_INTEGRATION} eq 'true';
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return (! -t STDOUT) || (
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defined($ENV{CONTINUOUS_INTEGRATION}) &&
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$ENV{CONTINUOUS_INTEGRATION} eq 'true');
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}
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# setup %ansi_line_upwards to map all working displays to the
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