Kenta Murata created ARROW-4537:
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Summary: [CI] Suppress shell warning on travis-ci
Key: ARROW-4537
URL: https://issues.apache.org/jira/browse/ARROW-4537
Project: Apache Arrow
Issue Type: Task
Components: Continuous Integration
Reporter: Kenta Murata
Suppress shell warnings like:
{{+'[' == 1 ']'}}
{{/home/travis/build/apache/arrow/ci/travis_before_script_cpp.sh: line 81: [:
==: unary operator expected}}
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