output only contains first line

[sebhoss]

Describe the bug

The step output only contains the first line of the generated changelog.

Reproduce

Steps to reproduce the behavior:

1. Use heinrichreimer/github-changelog-generator-action@v2.1.1
2. Reference generated output in downstream step ${{ steps.generate-changelog.outputs.changelog }}
3. Log changelog and see that step output does not contain the entire changelog

Expected behavior

The step output should contain the entire changelog

[sebhoss]

My current work around is to use juliangruber/read-file-action@v1 to read the generated changelog file like this:

- name: Read Changelog
  id: changelog
  uses: juliangruber/read-file-action@v1
  with:
    path: ./CHANGELOG.md

and then use ${{ steps.changelog.outputs.content }} to use the generated changelog in other steps.

[heinrichreimer]

Thanks for bringing this to my attention!
I've now fixed the bug.
I've also updated this project to use the action itself, so that we should see issues earlier.