message: Add UBSan options: print_stacktrace + halt_on_error
diff: export LC_ALL=C.UTF-8
  travis_retry docker pull "$DOCKER_NAME_TAG"
  -export UBSAN_OPTIONS="suppressions=${TRAVIS_BUILD_DIR}/contrib/sanitizers-ubsan.suppressions"
  +export UBSAN_OPTIONS="suppressions=${TRAVIS_BUILD_DIR}/contrib/sanitizers-ubsan.suppressions:print_stacktrace=1:halt_on_error=1"
  env | grep -E '^(CCACHE_|WINEDEBUG|LC_ALL|BOOST_TEST_RANDOM|CONFIG_SHELL|UBSAN_OPTIONS)' | tee /tmp/env
  if [[ $HOST = *-mingw32 ]]; then
  DOCKER_ADMIN="--cap-add SYS_ADMIN"
  