message: Update expected Ubuntu compiler version.
diff: @@ -22,5 +22,5 @@ rm -rf /var/lib/apt/lists/*
  # virtualenv
  pip install virtualenv
  -EXPECTED_CXX_VERSION="g++ (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609" ./build_container_common.sh
  +EXPECTED_CXX_VERSION="g++ (Ubuntu 5.4.0-6ubuntu1~16.04.5) 5.4.0 20160609" ./build_container_common.sh
  