message: Fixed extra_flags, passing arguments without quote
diff: @@ -215,7 +215,7 @@ jobs:
  ghr -t "${GITHUB_TOKEN}" \
  -u "${CIRCLE_PROJECT_USERNAME}" -r "${CIRCLE_PROJECT_REPONAME}" \
  -c "${CIRCLE_SHA1}" \
  - "${EXTRA_FLAGS}" \
  + ${EXTRA_FLAGS} \
  "${CIRCLE_TAG}" /tmp/workspace/release
  else
  echo "Current build is not tagged."
  