message: lint: Use TRAVIS_BRANCH in lint-git-commit-check.sh
diff: @@ -23,10 +23,18 @@ while getopts "?" opt; do
  esac
  done
  +# TRAVIS_BRANCH will be present in a Travis environment. For builds triggered
  +# by a pull request this is the name of the branch targeted by the pull request.
  +# https://docs.travis-ci.com/user/environment-variables/
  +if [ -n "${TRAVIS_BRANCH}" ]; then
  + COMMIT_RANGE="$TRAVIS_BRANCH..HEAD"
  +fi
  +
  if [ -z "${COMMIT_RANGE}" ]; then
  if [ -n "$1" ]; then
  COMMIT_RANGE="HEAD~$1...HEAD"
  else
  + # This assumes that the target branch of the pull request will be master.
  MERGE_BASE=$(git merge-base HEAD master)
  COMMIT_RANGE="$MERGE_BASE..HEAD"
  fi
  