Merge #16633: travis: Fix test_runner.py timeouts

faba46d ci: Set --ansi in test_runner (MarcoFalke)

Pull request description:

  Fixup to:

  *  tests: Use colors and dots in test_runner.py output only if standard output is a terminal #16561

ACKs for top commit:
  practicalswift:
    ACK faba46d -- diff looks correct
  fanquake:
    ACK faba46d - assuming Travis is all green.

Tree-SHA512: 50bf6ec8e7a2987d77821816289fd87458e63237d419a149e5e04027387d2c4b3c23db58977585fda30fbc4b13686a7def0d9e00096b9a8469dea2916fd30565

Author: MarcoFalke

ci/test/06_script_b.sh

@@ -16,7 +16,7 @@ fi
 
 if [ "$RUN_FUNCTIONAL_TESTS" = "true" ]; then
   BEGIN_FOLD functional-tests
-  DOCKER_EXEC test/functional/test_runner.py --ci --combinedlogslen=4000 ${TEST_RUNNER_EXTRA} --quiet --failfast
+  DOCKER_EXEC test/functional/test_runner.py --ci --ansi --combinedlogslen=4000 ${TEST_RUNNER_EXTRA} --quiet --failfast
   END_FOLD
 fi