message: ci: Print COMMIT_RANGE to the log as it was in Travis CI
diff: export LC_ALL=C
  +GIT_HEAD=$(git rev-parse HEAD)
  if [ -n "$CIRRUS_PR" ]; then
  - COMMIT_RANGE="$CIRRUS_BASE_SHA..HEAD"
  + COMMIT_RANGE="$CIRRUS_BASE_SHA..$GIT_HEAD"
  test/lint/commit-script-check.sh $COMMIT_RANGE
  fi
  export COMMIT_RANGE
  @@ -28,3 +29,6 @@ if [ "$CIRRUS_REPO_FULL_NAME" = "bitcoin/bitcoin" ] && [ -n "$CIRRUS_CRON" ]; th
  ${CI_RETRY_EXE} gpg --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys $(<contrib/verify-commits/trusted-keys) &&
  ./contrib/verify-commits/verify-commits.py --clean-merge=2;
  fi
  +
  +echo
  +git log --no-merges --oneline $COMMIT_RANGE
  