only commit staged files (angular)

PR Checklist

Please check if your PR fulfills the following requirements:

[ ] Tests for the changes have been added (for bug fixes / features)
[ ] Docs have been added / updated (for bug fixes / features)
[ ] If applicable, have a visual design approval

PR Type

What kind of change does this PR introduce?

[ ] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[x] Build related changes
[ ] CI related changes
[ ] Documentation content changes
[ ] clarity.design website / infrastructure changes
[ ] Other... Please describe:

What is the current behavior?

Currently, the update-license.js script will commit all modified files even if they are not staged. This is because the git diff command ends with a new line which is treated as an empty string and is interpreted as the entire directory.

Issue Number: N/A

What is the new behavior?

This PR makes it so that only staged changes would be committed.

Does this PR introduce a breaking change?

[ ] Yes
[x] No

Other information

I wasn't expecting this behavior and it took me a bit to track down. I did see comments to stash and pop untracked changes. If this is a feature and desired behavior, then I would suggest maybe we move it to a different script file so the behavior can be more easily identified.

vmware-archive / clarity