message: lint: Remove travis env var from commit linter
diff: @@ -14,20 +14,21 @@ while getopts "?" opt; do
  case $opt in
  ?)
  echo "Usage: $0 [N]"
  - echo " TRAVIS_COMMIT_RANGE='<commit range>' $0"
  + echo " COMMIT_RANGE='<commit range>' $0"
  echo " $0 -?"
  echo "Checks unmerged commits, the previous N commits, or a commit range."
  - echo "TRAVIS_COMMIT_RANGE='47ba2c3...ee50c9e' $0"
  + echo "COMMIT_RANGE='47ba2c3...ee50c9e' $0"
  exit ${EXIT_CODE}
  ;;
  esac
  done
  -if [ -z "${TRAVIS_COMMIT_RANGE}" ]; then
  +if [ -z "${COMMIT_RANGE}" ]; then
  if [ -n "$1" ]; then
  - TRAVIS_COMMIT_RANGE="HEAD~$1...HEAD"
  + COMMIT_RANGE="HEAD~$1...HEAD"
  else
  - TRAVIS_COMMIT_RANGE="origin/master..HEAD"
  + MERGE_BASE=$(git merge-base HEAD master)
  + COMMIT_RANGE="$MERGE_BASE..HEAD"
  fi
  fi
  @@ -41,6 +42,6 @@ while IFS= read -r commit_hash || [[ -n "$commit_hash" ]]; do
  EXIT_CODE=1
  fi
  done < <(git log --format=%B -n 1 "$commit_hash")
  -done < <(git log "${TRAVIS_COMMIT_RANGE}" --format=%H)
  +done < <(git log "${COMMIT_RANGE}" --format=%H)
  exit ${EXIT_CODE}
  